Mac G5 Freezes on gray screen on startup.

I've been noticing a problem of a freezing computer on the gray screen on startup in the last month. I simply re-start my computer, and it goes back to normal and boots up fine. I've not installed and programs, utilities, or new hardware. My computer still has over 200 gig of free space.
Is this an indication of a worse problem? If not, is there something I can do to fix this? I regularly used the Disk Utility program to check and fix permissions, so that should keep it somewhat clean.

Update your os. Your profile confirms you still using OS 10.6.6! You should be using OS 10.6.8 the last version of SL.

Similar Messages

Freezes and Gray Screens

I've been experiencing freezes and gray screen at startup problems on the MBP for a while and I'm at a loss as to what to do next.
Here's what I've done so far:
Run memtest, Drive Genius Disk Check for bad sectors and extended Apple Hardware Test - all ok - so I believe the hardware is good.
A clean install of Snow Leopard with the SL upgrade disk. The MBP came with Leopard installed.
Run Disk Warrior several times and replaced directory.
Read and followed the Apple Gray Screen support document and concluded peripherals were not a cause.
Udated drivers including printer (Kodak 5100) Axiom Pro Hypercontrol.
Bought a replacement Western Digital Scorpion Black 500gb drive, ran Disk Check and installed 10.6 from the upgrade disk and ran Software Update. Installed Logic Pro and still had a gray screen when booting from a Firewire connection.
I've read that the gray screen is an indication the computer can't find the OS. As far as the freezes are concerned I'm just stumped. Do I need to do an archive and install from the original Leopard disk and then upgrade with Snow Leopard?
Thanks for reading.

file://localhost/System/Library/LaunchAgents/com.apple.AddressBook.abd.plist
file://localhost/System/Library/LaunchAgents/com.apple.AirPortBaseStationAgent.p list
file://localhost/System/Library/LaunchAgents/com.apple.alf.useragent.plist
file://localhost/System/Library/LaunchAgents/com.apple.AOSNotificationOSX.plist
file://localhost/System/Library/LaunchAgents/com.apple.AppleGraphicsWarning.plis t
file://localhost/System/Library/LaunchAgents/com.apple.BezelUI.plist
file://localhost/System/Library/LaunchAgents/com.apple.coredata.externalrecordsw riter.plist
file://localhost/System/Library/LaunchAgents/com.apple.CoreLocationAgent.plist
file://localhost/System/Library/LaunchAgents/com.apple.coremedia.videodecoder.pl ist
file://localhost/System/Library/LaunchAgents/com.apple.coreservices.uiagent.plis t
file://localhost/System/Library/LaunchAgents/com.apple.cvmsCompAgent_i386.plist
file://localhost/System/Library/LaunchAgents/com.apple.cvmsCompAgent_ppc.plist
file://localhost/System/Library/LaunchAgents/com.apple.cvmsCompAgent_x86_64.plis t
file://localhost/System/Library/LaunchAgents/com.apple.datadetectors.compiler.pl ist
file://localhost/System/Library/LaunchAgents/com.apple.DictionaryPanelHelper.pli st
file://localhost/System/Library/LaunchAgents/com.apple.Dock.plist
file://localhost/System/Library/LaunchAgents/com.apple.familycontrols.useragent. plist
file://localhost/System/Library/LaunchAgents/com.apple.FileSyncAgent.plist
file://localhost/System/Library/LaunchAgents/com.apple.Finder.plist
file://localhost/System/Library/LaunchAgents/com.apple.fontd.useragent.plist
file://localhost/System/Library/LaunchAgents/com.apple.FontRegistryUIAgent.plist
file://localhost/System/Library/LaunchAgents/com.apple.FontValidator.plist
file://localhost/System/Library/LaunchAgents/com.apple.FontValidatorConduit.plis t
file://localhost/System/Library/LaunchAgents/com.apple.FontWorker.plist
file://localhost/System/Library/LaunchAgents/com.apple.gssd-agent.plist
file://localhost/System/Library/LaunchAgents/com.apple.helpd.plist
file://localhost/System/Library/LaunchAgents/com.apple.imklaunchagent.plist
file://localhost/System/Library/LaunchAgents/com.apple.installd.user.plist
file://localhost/System/Library/LaunchAgents/com.apple.isst.plist
file://localhost/System/Library/LaunchAgents/com.apple.java.updateSharing.plist
file://localhost/System/Library/LaunchAgents/com.apple.Kerberos.renew.plist
file://localhost/System/Library/LaunchAgents/com.apple.KerberosHelper.LKDCHelper .plist
file://localhost/System/Library/LaunchAgents/com.apple.metadata.mdwrite.plist
file://localhost/System/Library/LaunchAgents/com.apple.midiserver.plist
file://localhost/System/Library/LaunchAgents/com.apple.netauth.useragent.plist
file://localhost/System/Library/LaunchAgents/com.apple.NetworkDiagnostics.plist
file://localhost/System/Library/LaunchAgents/com.apple.parentalcontrols.check.pl ist
file://localhost/System/Library/LaunchAgents/com.apple.pboard.plist
file://localhost/System/Library/LaunchAgents/com.apple.pbs.plist
file://localhost/System/Library/LaunchAgents/com.apple.pcastuploader.plist
file://localhost/System/Library/LaunchAgents/com.apple.PCIESlotCheck.plist
file://localhost/System/Library/LaunchAgents/com.apple.pictd.plist
file://localhost/System/Library/LaunchAgents/com.apple.PreferenceSyncAgent.plist
file://localhost/System/Library/LaunchAgents/com.apple.PubSub.Agent.plist
file://localhost/System/Library/LaunchAgents/com.apple.quicklook.plist
file://localhost/System/Library/LaunchAgents/com.apple.RemoteDesktop.plist
file://localhost/System/Library/LaunchAgents/com.apple.RemoteUI.plist
file://localhost/System/Library/LaunchAgents/com.apple.ReportCrash.plist
file://localhost/System/Library/LaunchAgents/com.apple.ReportCrash.Self.plist
file://localhost/System/Library/LaunchAgents/com.apple.ReportPanic.plist
file://localhost/System/Library/LaunchAgents/com.apple.ScreenReaderUIServer.plis t
file://localhost/System/Library/LaunchAgents/com.apple.ScreenSharing.plist
file://localhost/System/Library/LaunchAgents/com.apple.scrod.plist
file://localhost/System/Library/LaunchAgents/com.apple.ServerScanner.plist
file://localhost/System/Library/LaunchAgents/com.apple.ServiceManagement.LoginIt ems.plist
file://localhost/System/Library/LaunchAgents/com.apple.store_helper.plist
file://localhost/System/Library/LaunchAgents/com.apple.storeagent.plist
file://localhost/System/Library/LaunchAgents/com.apple.SubmitDiagInfo.plist
file://localhost/System/Library/LaunchAgents/com.apple.syncservices.SyncServer.p list
file://localhost/System/Library/LaunchAgents/com.apple.syncservices.uihandler.pl ist
file://localhost/System/Library/LaunchAgents/com.apple.SystemUIServer.plist
file://localhost/System/Library/LaunchAgents/com.apple.tiswitcher.plist
file://localhost/System/Library/LaunchAgents/com.apple.TrustEvaluationAgent.plis t
file://localhost/System/Library/LaunchAgents/com.apple.unmountassistant.useragen t.plist
file://localhost/System/Library/LaunchAgents/com.apple.UserEventAgent-Aqua.plist
file://localhost/System/Library/LaunchAgents/com.apple.UserEventAgent-LoginWindo w.plist
file://localhost/System/Library/LaunchAgents/com.apple.VoiceOver.plist
file://localhost/System/Library/LaunchAgents/com.apple.warmd_agent.plist
file://localhost/System/Library/LaunchAgents/com.apple.WebKit.PluginAgent.plist
file://localhost/System/Library/LaunchAgents/edu.mit.Kerberos.CCacheServer.plist
file://localhost/System/Library/LaunchAgents/edu.mit.Kerberos.KerberosAgent.plis t
file://localhost/System/Library/LaunchAgents/org.openbsd.ssh-agent.plist
file://localhost/System/Library/LaunchAgents/org.x.startx.plist
file://localhost/System/Library/LaunchDaemons/bootps.plist
file://localhost/System/Library/LaunchDaemons/com.apple.activitymonitord.plist
file://localhost/System/Library/LaunchDaemons/com.apple.afpfs_afpLoad.plist
file://localhost/System/Library/LaunchDaemons/com.apple.afpfs_checkafp.plist
file://localhost/System/Library/LaunchDaemons/com.apple.airport.wps.plist
file://localhost/System/Library/LaunchDaemons/com.apple.airportd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.airportPrefsUpdater.plis t
file://localhost/System/Library/LaunchDaemons/com.apple.alf.agent.plist
file://localhost/System/Library/LaunchDaemons/com.apple.alf.helper.plist
file://localhost/System/Library/LaunchDaemons/com.apple.APNBridge.plist
file://localhost/System/Library/LaunchDaemons/com.apple.AppleFileServer.plist
file://localhost/System/Library/LaunchDaemons/com.apple.appleprofilepolicyd.plis t
file://localhost/System/Library/LaunchDaemons/com.apple.applepushserviced.plist
file://localhost/System/Library/LaunchDaemons/com.apple.aslmanager.plist
file://localhost/System/Library/LaunchDaemons/com.apple.atrun.plist
file://localhost/System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist
file://localhost/System/Library/LaunchDaemons/com.apple.auditd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.autofsd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.automountd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.awacsd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.backupd-attach.plist
file://localhost/System/Library/LaunchDaemons/com.apple.backupd-auto.plist
file://localhost/System/Library/LaunchDaemons/com.apple.backupd-wake.plist
file://localhost/System/Library/LaunchDaemons/com.apple.backupd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.blued.plist
file://localhost/System/Library/LaunchDaemons/com.apple.bootlog.plist
file://localhost/System/Library/LaunchDaemons/com.apple.bsd.dirhelper.plist
file://localhost/System/Library/LaunchDaemons/com.apple.bsd.launchdadd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.configd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.configureLocalKDC.plist
file://localhost/System/Library/LaunchDaemons/com.apple.CoreRAID.plist
file://localhost/System/Library/LaunchDaemons/com.apple.coreservicesd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.cvmsServ.plist
file://localhost/System/Library/LaunchDaemons/com.apple.dashboard.advisory.fetch .plist
file://localhost/System/Library/LaunchDaemons/com.apple.DiagnosticReportCleanUp. plist
file://localhost/System/Library/LaunchDaemons/com.apple.DirectoryServices.plist
file://localhost/System/Library/LaunchDaemons/com.apple.DirectoryServicesLocal.p list
file://localhost/System/Library/LaunchDaemons/com.apple.diskarbitrationd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.diskmanagementd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.distnoted.plist
file://localhost/System/Library/LaunchDaemons/com.apple.dnsextd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.docsetinstalld.plist
file://localhost/System/Library/LaunchDaemons/com.apple.dpd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.DumpPanic.plist
file://localhost/System/Library/LaunchDaemons/com.apple.dvdplayback.setregion.pl ist
file://localhost/System/Library/LaunchDaemons/com.apple.dynamic_pager.plist
file://localhost/System/Library/LaunchDaemons/com.apple.efax.plist
file://localhost/System/Library/LaunchDaemons/com.apple.eppc.plist
file://localhost/System/Library/LaunchDaemons/com.apple.familycontrols.plist
file://localhost/System/Library/LaunchDaemons/com.apple.FileSyncAgent.sshd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.firmwaresyncd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.fontd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.fontmover.plist
file://localhost/System/Library/LaunchDaemons/com.apple.FontWorker.plist
file://localhost/System/Library/LaunchDaemons/com.apple.fseventsd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.gssd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.hdiejectd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.hidd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.IFCStart.plist
file://localhost/System/Library/LaunchDaemons/com.apple.IIDCAssistant.plist
file://localhost/System/Library/LaunchDaemons/com.apple.installd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.InternetSharing.plist
file://localhost/System/Library/LaunchDaemons/com.apple.kdumpd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.KerberosAutoConfig.plist
file://localhost/System/Library/LaunchDaemons/com.apple.KernelEventAgent.plist
file://localhost/System/Library/LaunchDaemons/com.apple.kextd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.kuncd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.locate.plist
file://localhost/System/Library/LaunchDaemons/com.apple.locationd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.lockd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.loginwindow.plist
file://localhost/System/Library/LaunchDaemons/com.apple.loginwindow.secureerase. plist
file://localhost/System/Library/LaunchDaemons/com.apple.mDNSResponder.plist
file://localhost/System/Library/LaunchDaemons/com.apple.mDNSResponderHelper.plis t
file://localhost/System/Library/LaunchDaemons/com.apple.metadata.mds.plist
file://localhost/System/Library/LaunchDaemons/com.apple.netauth.sysagent.plist
file://localhost/System/Library/LaunchDaemons/com.apple.newsyslog.plist
file://localhost/System/Library/LaunchDaemons/com.apple.nfsd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.nis.rpc.yppasswdd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.nis.ypbind.plist
file://localhost/System/Library/LaunchDaemons/com.apple.nis.ypserv.plist
file://localhost/System/Library/LaunchDaemons/com.apple.NotificationServer.plist
file://localhost/System/Library/LaunchDaemons/com.apple.notifyd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.ocspd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.ODSAgent.plist
file://localhost/System/Library/LaunchDaemons/com.apple.pcastagentconfigd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.pcastagentd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.pcastuploader.plist
file://localhost/System/Library/LaunchDaemons/com.apple.PCIELaneConfigTool.plist
file://localhost/System/Library/LaunchDaemons/com.apple.periodic-daily.plist
file://localhost/System/Library/LaunchDaemons/com.apple.periodic-monthly.plist
file://localhost/System/Library/LaunchDaemons/com.apple.periodic-weekly.plist
file://localhost/System/Library/LaunchDaemons/com.apple.platform.ptmd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.portmap.plist
file://localhost/System/Library/LaunchDaemons/com.apple.preferences.timezone.adm intool.plist
file://localhost/System/Library/LaunchDaemons/com.apple.preferences.timezone.aut o.plist
file://localhost/System/Library/LaunchDaemons/com.apple.printtool.plist
file://localhost/System/Library/LaunchDaemons/com.apple.proxyhelper.plist
file://localhost/System/Library/LaunchDaemons/com.apple.racoon.plist
file://localhost/System/Library/LaunchDaemons/com.apple.RemoteDesktop.PrivilegeP roxy.plist
file://localhost/System/Library/LaunchDaemons/com.apple.ReportCrash.Root.plist
file://localhost/System/Library/LaunchDaemons/com.apple.RFBEventHelper.plist
file://localhost/System/Library/LaunchDaemons/com.apple.RFBRegisterMDNS_RemoteMa nagement.plist
file://localhost/System/Library/LaunchDaemons/com.apple.RFBRegisterMDNS_ScreenSh aring.plist
file://localhost/System/Library/LaunchDaemons/com.apple.sandboxd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.SCHelper.plist
file://localhost/System/Library/LaunchDaemons/com.apple.scsid.plist
file://localhost/System/Library/LaunchDaemons/com.apple.securityd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.securityproxy_mail.plist
file://localhost/System/Library/LaunchDaemons/com.apple.service_helper.plist
file://localhost/System/Library/LaunchDaemons/com.apple.smb.server.preferences.p list
file://localhost/System/Library/LaunchDaemons/com.apple.smb.sharepoints.plist
file://localhost/System/Library/LaunchDaemons/com.apple.smbfs_load_kext.plist
file://localhost/System/Library/LaunchDaemons/com.apple.spindump_symbolicator.pl ist
file://localhost/System/Library/LaunchDaemons/com.apple.spindump.plist
file://localhost/System/Library/LaunchDaemons/com.apple.stackshot.plist
file://localhost/System/Library/LaunchDaemons/com.apple.statd.notify.plist
file://localhost/System/Library/LaunchDaemons/com.apple.storereceiptinstaller.pl ist
file://localhost/System/Library/LaunchDaemons/com.apple.suhelperd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.syslogd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.systemkeychain.plist
file://localhost/System/Library/LaunchDaemons/com.apple.systempreferences.instal ler.plist
file://localhost/System/Library/LaunchDaemons/com.apple.SystemStarter.plist
file://localhost/System/Library/LaunchDaemons/com.apple.taskgated.plist
file://localhost/System/Library/LaunchDaemons/com.apple.TrustEvaluationAgent.sys tem.plist
file://localhost/System/Library/LaunchDaemons/com.apple.usbmuxd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.UserNotificationCenter.p list
file://localhost/System/Library/LaunchDaemons/com.apple.uucp.plist
file://localhost/System/Library/LaunchDaemons/com.apple.var-db-dslocal-backup.pl ist
file://localhost/System/Library/LaunchDaemons/com.apple.var-db-shadow-backup.pli st
file://localhost/System/Library/LaunchDaemons/com.apple.vsdbutil.plist
file://localhost/System/Library/LaunchDaemons/com.apple.warmd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.webdavfs_load_kext.plist
file://localhost/System/Library/LaunchDaemons/com.apple.WindowServer.plist
file://localhost/System/Library/LaunchDaemons/com.apple.xgridagentd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.xgridcontrollerd.plist
file://localhost/System/Library/LaunchDaemons/com.apple.xprotectupdater.plist
file://localhost/System/Library/LaunchDaemons/com.danga.memcached.plist
file://localhost/System/Library/LaunchDaemons/com.vix.cron.plist
file://localhost/System/Library/LaunchDaemons/comsat.plist
file://localhost/System/Library/LaunchDaemons/edu.mit.Kerberos.kadmind.plist
file://localhost/System/Library/LaunchDaemons/edu.mit.Kerberos.krb5kdc.plist
file://localhost/System/Library/LaunchDaemons/exec.plist
file://localhost/System/Library/LaunchDaemons/finger.plist
file://localhost/System/Library/LaunchDaemons/ftp.plist
file://localhost/System/Library/LaunchDaemons/login.plist
file://localhost/System/Library/LaunchDaemons/nmbd.plist
file://localhost/System/Library/LaunchDaemons/ntalk.plist
file://localhost/System/Library/LaunchDaemons/org.amavis.amavisd_cleanup.plist
file://localhost/System/Library/LaunchDaemons/org.amavis.amavisd.plist
file://localhost/System/Library/LaunchDaemons/org.apache.httpd.plist
file://localhost/System/Library/LaunchDaemons/org.cups.cups-lpd.plist
file://localhost/System/Library/LaunchDaemons/org.cups.cupsd.plist
file://localhost/System/Library/LaunchDaemons/org.isc.named.plist
file://localhost/System/Library/LaunchDaemons/org.net-snmp.snmpd.plist
file://localhost/System/Library/LaunchDaemons/org.ntp.ntpd.plist
file://localhost/System/Library/LaunchDaemons/org.postfix.master.plist
file://localhost/System/Library/LaunchDaemons/org.samba.winbindd.plist
file://localhost/System/Library/LaunchDaemons/org.x.privileged_startx.plist
file://localhost/System/Library/LaunchDaemons/shell.plist
file://localhost/System/Library/LaunchDaemons/smbd.plist
file://localhost/System/Library/LaunchDaemons/ssh.plist
file://localhost/System/Library/LaunchDaemons/telnet.plist
file://localhost/System/Library/LaunchDaemons/tftp.plist
The Startupitems folder is empty
Last login: Mon Mar 19 15:06:32 on console
xxxx:~ xxxx$ kextstat -kl | awk ' !/apple/ { print $6 $7 } '
tc.tctechnologies.driver.PaeFireStudio(3.5.6
com.Apogee.driver.DuetFWOverideDriver(1.4.4)
com.Logitech.ControlCenter.HID
xxxx:~ xxxx$

My Mac is producing gray screen at startup and crashes. I'm afraid that everything explode and disappear, and can no longer connect and work with my Mac. Can anyone help ?? Thank you.

My Mac is producing gray screen at startup and crashes. I'm afraid that everything explode and disappear, and can no longer connect and work with my Mac. Can anyone help ??
Thank you.
Problem description:
gray screen at startup and crashes
EtreCheck version: 2.1.1 (104)
Report generated 6 de dezembro de 2014 13:29:43 BRST
Hardware Information: ℹ️
MacBook Pro (15-inch, Early 2011) (Verified)
MacBook Pro - model: MacBookPro8,2
1 2.2 GHz Intel Core i7 CPU: 4-core
4 GB RAM
BANK 0/DIMM0
2 GB DDR3 1333 MHz ok
BANK 1/DIMM0
2 GB DDR3 1333 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
AMD Radeon HD 6750M - VRAM: 1024 MB
Color LCD 1440 x 900
Intel HD Graphics 3000 - VRAM: 384 MB
System Software: ℹ️
Mac OS X 10.6.8 (10K549) - Uptime: 0:31:56
Disk Information: ℹ️
TOSHIBA MK7559GSXF disk0 : (698,64 GB)
S.M.A.R.T. Status: Verified
- (disk0s1) <not mounted> : 210 MB
Macintosh HD (disk0s2) / : 749.81 GB (378.70 GB free)
MATSHITADVD-R   UJ-898
USB Information: ℹ️
Apple Inc. FaceTime HD Camera (Built-in)
Apple Inc. Apple Internal Keyboard / Trackpad
Apple Inc. BRCM2070 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
Apple, Inc. MacBook Pro
Problem System Launch Daemons: ℹ️
[not loaded] org.samba.winbindd.plist [Support]
Launch Agents: ℹ️
[running] com.babylon.activation.plist [Support]
[loaded] com.divx.dms.agent.plist [Support]
[loaded] com.divx.update.agent.plist [Support]
[loaded] com.hp.help.tocgenerator.plist [Support]
Launch Daemons: ℹ️
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
User Launch Agents: ℹ️
[loaded] com.adobe.ARM.[...].plist [Support]
[loaded] com.facebook.videochat.[redacted].plist [Support]
[loaded] com.google.keystone.agent.plist [Support]
[running] com.skype.c2c_service.plist [Support]
User Login Items: ℹ️
iTunesHelper UNKNOWNHidden (missing value)
FaceboxPro Aplicativo (/Applications/FaceboxPro.app)
Safari Aplicativo (/Applications/Safari.app)
Octoshape Aplicativo (/Users/[redacted]/Library/Octoshape/Octoshape.app)
uTorrent UNKNOWN (missing value)
Dropbox Aplicativo (/Applications/Dropbox.app)
Inkscape UNKNOWN (missing value)
RealPlayer Downloader Agent Aplicativo (/Users/[redacted]/Library/Application Support/RealNetworks/RealPlayer Downloader Agent.app)
HP Product Research Aplicativo (/Library/Application Support/Hewlett-Packard/Customer Participation/HP Product Research.app)
Internet Plug-ins: ℹ️
OVSHelper: Version: 1.1 [Support]
Google Earth Web Plug-in: Version: 7.1 [Support]
Flip4Mac WMV Plugin: Version: 2.4.4.2 [Support]
RealPlayer Plugin: Version: Unknown [Support]
AdobePDFViewerNPAPI: Version: 10.1.12 [Support]
FlashPlayer-10.6: Version: 15.0.0.239 - SDK 10.6 [Support]
DivX Web Player: Version: 3.1.1.9 - SDK 10.6 [Support]
Silverlight: Version: 5.1.30514.0 - SDK 10.6 [Support]
Flash Player: Version: 15.0.0.239 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.6.6
iPhotoPhotocast: Version: 7.0 - SDK 10.7
SharePointBrowserPlugin: Version: 14.1.2 [Support]
AdobePDFViewer: Version: 10.1.12 [Support]
JavaAppletPlugin: Version: 13.9.8 - SDK 10.6 Check version
User internet Plug-ins: ℹ️
npsf_uni: Version: sf 3.3.2.1 [Support]
OctoshapeWeb: Version: 1.0 - SDK 10.8 [Support]
Safari Extensions: ℹ️
Searchme Adware! [Remove]
Skype Click to Call
iSkyDeluxe
TED HTML5 video playe
Audio Plug-ins: ℹ️
iSightAudio: Version: 7.6.6
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Flip4Mac WMV [Support]
Skype Click to Call [Support]
Tuxera NTFS [Support]
Time Machine: ℹ️
Time Machine information requires OS X 10.7 "Lion" or later.
Top Processes by CPU: ℹ️
      5% WindowServer
      4% DivXMediaServer
      1% fontd
      0% RealPlayer Downloader Agent
      0% WebProcess
Top Processes by Memory: ℹ️
296 MB WebProcess
202 MB FaceboxPro
185 MB Microsoft PowerPoint
163 MB Safari
137 MB Microsoft Word
Virtual Memory Information: ℹ️
843 MB Free RAM
1.76 GB Active RAM
706 MB Inactive RAM
978 MB Wired RAM
577 MB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Dec 6, 2014, 12:58:24 PM Self test - passed
Dec 6, 2014, 12:23:11 PM Kernel_2014-12-06-122311_MacBook-Pro-de-...panic [Details]
Dec 6, 2014, 07:08:28 AM PluginProcess_2014-12-06-070828_MacBook-...crash
Dec 5, 2014, 05:24:39 PM WebProcess_2014-12-05-172439_MacBook-Pro...crash
Dec 5, 2014, 10:45:59 AM Kernel_2014-12-05-104559_MacBook-Pro-de-...panic [Details]
Dec 5, 2014, 10:18:14 AM Kernel_2014-12-05-101814_MacBook-Pro-de-...panic [Details]
Dec 3, 2014, 08:28:35 PM locationd_2014-12-03-202835_localhost.crash
Dec 5, 2014, 10:25:44 AM Kernel_2014-12-05-102544_MacBook-Pro-de-...panic [Details]

Startup - Gray, Blue or White screen at boot, w/spinner/progress bar
Startup Issues - Resolve
Startup Issues - Resolve (2)

Freeze on blank gray screen at startup in OS 9.2.2!?

Hi,
I've been a happy OS 9.2.2 user for many years on my G4/933. I have OSX.3 on a 2nd internal drive. But I do mainly audio recording, and I find OSX to be extremely sluggish, so I work primarily in OS9.
Everything had been working fine, but then last night as I restarted from OSX with my OS 9.2.2 partition selected as the startup disk, the computer rebooted then completely froze on a blank gray screen. No icon, question mark, sad Mac. Nothing. Since then I have restarted many time by holding down the Option key to go back to OSX. While in OSX I ran Disk Repair on the internal drive with OS 9 on it. And I then ran Disk Warrior 2.1 for OS9 on the drive. They both found some errors, but nothing critical and they were fixed. But I still get the gray screen of nothingness when restarting under OS 9.2.2.
With some hesitation I tried "zapping the PRAM", which i've never done before. As I held down the Command/Option/P/R keys the screen just stayed black, which was scary. When I finally let the keys go it changed the Gray Screen of Nothingness and I was able to reboot and get back to OSX. I have no idea if I actually zapped my PRAM or not, or if that is the right thing to do.
I can function in OSX, but I'm really hobbled without being able to work in my good old OS 9 environment. I would really appreciate any tips...!
Thanks - Steve
G4 (circa July '02) Mac OS 9.2.x
G4 (circa July '02) Mac OS 9.2.x

Okay. I discovered these two post from a guy who appeared to have a similar issue as you do:
OS 9 Gray Screen, Help - MacWorld Forums & Os 9 Gray Screen - MacOSX.com
He even used Mac OS 9 primarily for audio work. From what I gathered his Mac was suffering from corrupt preference files.
Try doing the following:
Boot into Mac OS X and open the Preference folder in you Mac OS 9 System Folder.
Move these files into the Trash: Finder preferences, Mac OS preferences & System preferences. Also trash the preferences files for your audio card if you have any.
Open your Mac OS X System Preferences and select your Mac OS 9 folder as your start up volume, then quit System Preferences.
Shut down your Mac and unplug it.
Open the Mac, remove all of your PCI cards, and press the PMU button for 10 seconds. (The PMU button is a tiny black button on a small silver block mounted somewhere on the motherboard. It should look similar to this.)
Reinstall you cards, close your Mac and plug it back in.
Press the power button. If all is well the Mac should be able to into Mac OS 9 with out any problems.
If it still hags on the gray screen then your Mac OS 9 partition might be heavily fragmented or nearly full.

Freeze on blank gray screen at startup in OS 9

I see that that you all have posted this isuue, and I have read and attempted your solutions. However, I am still unable to reboot my system. I just a get a blank gray screen with a floppy icon and a question mark. When I reboot holding down the option key I do get a a different screen with a circular arrow on the left and a straight arrow on the right. When I click on the semi-circle I see the hour glass but nothing happens. When I click on the straight arrow I get the gray screen again. I'm stuck!

This post has been answered.
Thank you

Mac Pro stuck on gray screen after installing software for a new keyboard

I am having a huge issue with my very important work computer! For a few weeks, my Mac has been freezing on the gray screen during start up. Since I had two external hard drives plugged in, I would unplug one of them and the Mac would always restart correctly once one was unplugged. Well today I was installing software for a new keyboard and the mac prompted me to restart. Once I restarted, the gray screen came up again and no matter what I did it would not start up correctly again. I tried unplugging everything except the keyboard and monitor and nothing works. I tried ejecting the crash-causing CD with the keyboard using all of the commands I found on this forum board and nothing worked. I saw forums about manually ejecting the CD by pushing a pin-hole but I cannot find that pinhole anywhere! Then again, the CD might not even be the problem but since the computer gave me the gray screen of death right after using the CD I am thinking that it is the problem. I use this computer for editing a TV show and creating websites so there is a ton of files on it and I need to get it up and running again ASAP. Any suggestions would be appreciated and I am sure by now you can tell that I am not a Mac expert so please dumb it down for me. Thank you!!

I would start by breaking your thoughts and sentences out from one long paragraph.
Start at the basics.
Always have backups.
One at least that is a spare boot system you can use.
Clone your system. SuperDuper does a great job for only $29
Boot from another hard drive or last OS X DVD
Repair your drive with Apple Disk Utility along with 3rd party disk maintenance and repair
Hold Option key until the boot manager, then hold mouse to open optical drive.
You can hold mouse on startup and it will eject also.
Hold and continue to hold Shift key during startup to repair the boot drive in minimal fashion.
What device and driver? hint: never use CD, just go online as the CD is usually out of date anyway.
Fill in Mac OS X version and more about hardware would help in posts and in your profile signature.
http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html
http://www.macintouch.com/readerreports/harddrives/index.html#d12aug2010
http://www.alsoft.com/DiskWarrior

Darker Gray Screen on Startup

i recently tried to boot from my installation disc to troubleshoot, etc. however, I was unable to get the computer to boot it completely. it went through the normal gray boot screen, followed by a blue screen for a couple seconds. after this, it went to a darker gray screen with a pointer, but it sits there and does nothing else, even after letting it sit overnight. I couldnt find this problem anywehre on the forum, and I would appreciate any information about this problem. thanks

ive tried by holding c, changing the startup disc, and clicking restart on the install mac os x application on the DVD. the problem is not that it wont boot, just that it freezes without any possible input from me.

Mac sometimes freezes to white screen out of nowhere?

I have a MacBook Pro late 2011 running on Lion. Out of nowhere the screen just turns white and item it will turn a grayish color and get really hot. I am out of the warranty, and I have no clue how to fix it. I can get it to turn on occasionally, as I have been trying to get files off of it, but then it will freeze and go to the white screen in no more than an hour.

Mac OS X: Gray screen appears during startup

Gray screen during startup after boot camp installation

I cannot either Mac and Windows t start on Mac Mini after I updated with Windows7 on Bootcamp.

Hi there Sudarshan21,
I would recommend taking a look at the troubleshooting steps found in the article below.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/ts2570
-Griff W.

Imac freezes with gray screen after mavericks update

I was updating my imac system and it is frozen in a gray screen, like it is restarting.
It's been twenty minutes and it didn't restarted.
What can i do if it don't restart anymore?
All my work data is on that imac.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a startup failure is to secure the data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since the last backup, you can skip this step.
There are several ways to back up a Mac that is unable to start. You need an external hard drive to hold the backup data.
     a. Start up from the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.” The article refers to starting up from a DVD, but the procedure in Recovery mode is the same. You don't need a DVD if you're running OS X 10.7 or later.
b. If Step 1a fails because of disk errors, and no other Mac is available, then you may be able to salvage some of your files by copying them in the Finder. If you already have an external drive with OS X installed, start up from it. Otherwise, if you have Internet access, follow the instructions on this page to prepare the external drive and install OS X on it. You'll use the Recovery installer, rather than downloading it from the App Store.
c. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, start the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
d. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
If the startup process stops at a blank gray screen with no Apple logo or spinning "daisy wheel," then the startup volume may be full. If you had previously seen warnings of low disk space, this is almost certainly the case. You might be able to start up in safe mode even though you can't start up normally. Otherwise, start up from an external drive, or else use the technique in Step 1b, 1c, or 1d to mount the internal drive and delete some files. According to Apple documentation, you need at least 9 GB of available space on the startup volume (as shown in the Finder Info window) for normal operation.
Step 3
Sometimes a startup failure can be resolved by resetting the NVRAM.
Step 4
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 5
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 6
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to start up, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can start up now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
Step 7
If you've started from an external storage device, make sure that the internal startup volume is selected in the Startup Disk pane of System Preferences.
Start up in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a Fusion Drive or a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to start and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know the login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you start up in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, the startup volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 11. If you ever have another problem with the drive, replace it immediately.
If you can start and log in in safe mode, empty the Trash, and then open the Finder Info window on the startup volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then restart as usual (i.e., not in safe mode.)
If the startup process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 8
Launch Disk Utility in Recovery mode (see Step 1.) Select the startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then restart as usual.
Step 9
If the startup device is an aftermarket SSD, it may need a firmware update and/or a forced "garbage collection." Instructions for doing this with a Crucial-branded SSD were posted here. Some of those instructions may apply to other brands of SSD, but you should check with the vendor's tech support.
Step 10
Reinstall the OS. If the Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 11
Do as in Step 9, but this time erase the startup volume in Disk Utility before installing. The system should automatically restart into the Setup Assistant. Follow the prompts to transfer the data from a Time Machine or other backup.
Step 12
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a startup failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 13
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Upon start up the mac stops at the gray screen

Upon start up the mac stops at the gray screen

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 3
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 4
Boot in safe mode. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 5.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 5
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 6
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 7
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 8
This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. Both desktop and portable Macs used to have such a battery. The logic-board battery is separate from the main battery of a portable. A dead logic-board battery can cause a boot failure. Typically the boot failure will be preceded by loss of the startup disk and system clock settings. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 9
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested. If you can't get to an Apple Store, go to another authorized service provider.

IMac G5 gray screen on startup and fan maxes out!! Help!

I've heard this problem quite a bit on several forums, but have yet to find an answer. I Need help!! My iMac G5 delays on startup ( i hit the button, and startup doesn't actually start for a minute or 2), and when it does, i get the gray screen, and then after another minute, the fan goes crazy and maxed out until I manually shut down. I reset the memory, and check the LED lights, (all came on normally). What's going on here!? I appreciate any help

If the troubleshooting solutions listed in Mac 101 were of no help & you found no solutions to your problem(s) listed in the various Knowledge Base Articles see if the following suggestions are of any help:
Except for the keyboard & mouse, disconnect all devices/peripherals from your computer.
Step 1: Restart into Safe Mode by holding down the Shift key during startup. The comp will run a complete & lengthy file systtem check, then start up w/only the required kerenel extensions & w/o running any Startup items tthat you installed.
If you are running OS 10.4 it will also perform some font finagling.
Try starting up normally again. If you are still stalling, restart in Safe Mode & move on to Step 2...........
Mac OS X: Starting up in Safe Mode
Step 2: Open Library>Startup items folder-the root level Library, not the one in your user name folder.
Look for potentially problematic 3rd party items such as virus scanning software components, etc. Remove 1 or more items to a location outside the Library folder, such as the Desktop, then restart normally & see if your Mac stalls. It it does, try removing all the items in the Startup items folder & restart. If all’s now well, place the items back into the Startup items folder 1 by 1, restarting each time you put one back. If and/or when the stall resurfaces, you just identified the faulty component.
If the above does not work, then it’s time to move on to Step 3.................
Step 3: WARNING-This step can be tedious-removing .plist files from the /Library/Preferences folder.
Remove the entire Preferences folder from the Library folder on your startup drive then place the files back 1 by 1 until you see the problem return. *The Mac will automatically create a new Preferences folder in the Library folder*
Alternatively, you can take half of the items out (all non-Apple .plist file, for example), restart to see if your Mac stalls, then move to a smaller set of items, repeatingn the process until the culprit is found.
Or you can use Preferential Treatment which is a FREE utility that does all the work for you.
Hang in there & good luck!!!!

Mac mini stuck at gray screen HELP!!!!!!!!!

Hi,
i have my mac mini stuck at a gray screen can you help me

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 3
If you use a wireless keyboard, trackpad, or mouse, replace or recharge the batteries. The battery level shown in the Bluetooth menu item may not be accurate.
Step 4
If there's a built-in optical drive, a disc may be stuck in it. Follow these instructions to eject it.
Step 5
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 6
Boot in safe mode. Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 6.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 7
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 8
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 9
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 10
This step applies only to models that have a logic-board ("PRAM") battery: all Mac Pro's and some others (not current models.) Both desktop and portable Macs used to have such a battery. The logic-board battery, if there is one, is separate from the main battery of a portable. A dead logic-board battery can cause a boot failure. Typically the failure will be preceded by loss of the settings for the startup disk and system clock. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 11
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store, or go to another authorized service provider.

Stops at gray screen on startup

This problem is mostly annoying but hasn't proved fatal: Sometimes, after my Rev A iMac G5 has been running for a while, if I do a restart or a shutdown and then restart, it get stuck at the gray screen. I get the startup tone, the gray screen comes up but no Apple logo or spinning wheel.
If I leave the machine off for, say, 10 minutes or so and reboot it works fine. And, sometimes, you can do a restart with no problem.
Anyone else have this problem? I asked AppleCare about it while battling a kernal panic situation in June. They were mystified.
Thanks for any help.

I have been having the same trouble for the last three months, I get the apple logo but no spinning wheel. re starts became less and less successful with time. . now. I tried to reload osx but it freezes up on install disc 2.i cant eject the disc, and now only getting gray screen. I suspect my hard disc is locking up .i have a seagate 80 gbdrive, my serial no is QP44OAFPP7, should I just send this computer to a repair station???

Mac Pro freezes at login screen

Mac Pro (2008, dual 2.8GHz quadcore, OS 10.6.8) is set up with
Energy Saver settings: computer sleep 1 hour, screen sleep 5 minutes
Security settings: require password immediately after sleep or screen saver begins
After the computer goes to sleep, upon hitting a key, the login screen appears. However after typing password, there was a message "checking password" and then the computer freezes. I've followed recommendations in Mac Pro Freezing: Checking Password
After the computer goes to sleep, the login screen is frozen. I cannot even enter password. After hard-rebooting it, it appears OK.
Here are the last entries in system.log:
Jan 8 15:21:59 oldmacpro com.apple.backupd[402]: Post-back up thinning complete: 4 expired backups removed
Jan 8 15:22:00 oldmacpro com.apple.backupd[402]: Backup completed successfully.
Jan 8 17:09:27 localhost DirectoryService[11]: Improper shutdown detected
Here are the last entries in kernel.log
Jan 8 15:50:55 oldmacpro kernel[0]: PM notification cancel (pid 47, cupsd)
Jan 8 15:50:55 oldmacpro kernel[0]: IOPMrootDomain: idle cancel
Jan 8 15:56:20 oldmacpro kernel[0]: PM notification cancel (pid 47, cupsd)
Jan 8 15:56:20 oldmacpro kernel[0]: IOPMrootDomain: idle cancel
Jan 8 17:09:27 localhost kernel[0]: npvhash=4095
Question: how can I find out what causes the computer to freeze and how can I fix it ?

I would say yes to the verbose mode and go one further and make it permanent. Coming to OSX from running Tiger on an XPF install on a beige G3 system (totally unsupported by Apple), it was ALWAYS a smart move and even in new machines running hardware they're built to, you can't lose. For the times I do have to reboot, it's good to be able to watch the startup, as you catch immediately if there's a problem with anything. It is verbose after all...
To turn the mode on, you open the Terminal, and at the prompt, type in
*sudo nvram boot-args="-v"* and hit enter. It will nag you about using the terminal (if you haven't done so before) and you enter your password, hit enter again and you're good to go. (if you want to turn it off, type in *sudo nvram boot-args=* and hit enter and your password again)

Mac G5 Freezes on gray screen on startup.

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