Grey screen at boot up and then hang up

I've tried to use my 2008 iMac running MAC OS 10.7.5 this morning and it won't boot. I get to the grey screen where it would normally display the apple logo and then the login prompt, but hangs up before that point.
I've sucessfully booted it into safe mode and all the hardware checks I've performed suggest that everything is ok.
Via safe mode I've found the following boot information - located in the "/var/log/system.log" file...
Feb 25 10:08:28 localhost bootlog[0]: BOOT_TIME 1361786908 0
Feb 25 10:08:30 localhost com.apple.launchd[1]: *** launchd[1] has started up. ***
Feb 25 10:08:39 localhost com.apple.launchd[1] (com.apple.powerd): Unknown value for key POSIXSpawnType: Interactive
Feb 25 10:08:39 localhost com.apple.launchd[1] (com.apple.sandboxd): Unknown value for key POSIXSpawnType: Interactive
Feb 25 10:08:51 localhost UserEventAgent[11]: starting CaptiveNetworkSupport as SystemEventAgent built Jun 13 2011 17:29:21
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CreateInterfaceWatchList:2788 WiFi Devices Found.
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Feb 25 10:08:52: --- last message repeated 1 time ---
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Feb 25 10:08:51 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Feb 25 10:08:52: --- last message repeated 1 time ---
Feb 25 10:08:52 localhost UserEventAgent[11]: CertsKeychainMonitor: configuring
Feb 25 10:08:53 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Feb 25 10:08:53: --- last message repeated 1 time ---
Feb 25 10:08:53 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Feb 25 10:08:53 localhost airportd[28]: _processDLILEvent: en1 attached (down)
Feb 25 10:08:53 localhost mDNSResponder[12]: mDNSResponder mDNSResponder-320.16 (Jul 19 2012 21:07:07) starting OSXVers 11
Feb 25 10:08:54 ze_monkey-imac configd[16]: setting hostname to "ze_monkey-imac.local"
Feb 25 10:08:54 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:08:55 ze_monkey-imac systemkeychain[40]: done file: /var/run/systemkeychaincheck.done
Feb 25 10:08:55 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:08:55: --- last message repeated 1 time ---
Feb 25 10:08:55 ze_monkey-imac mDNSResponder[12]: D2D_IPC: Loaded
Feb 25 10:08:55 ze_monkey-imac mDNSResponder[12]: D2DInitialize succeeded
Feb 25 10:08:57 ze_monkey-imac UserEventAgent[11]: ServermgrdRegistration cannot load config data
Feb 25 10:08:58 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CNSPreferences:60 Creating new preferences
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on ze_monkey-wireless because it is protected and not on the exception list
Feb 25 10:08:58 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
Feb 25 10:08:58 ze_monkey-imac configd[16]: network configuration changed.
Feb 25 10:09:01 ze_monkey-imac com.apple.pfctl[66]: No ALTQ support in kernel
Feb 25 10:09:01 ze_monkey-imac com.apple.pfctl[66]: ALTQ related functions disabled
Feb 25 10:09:02 ze_monkey-imac com.apple.ucupdate.plist[59]: ucupdate: Checked 1 update, no match found.
Feb 25 10:09:03 ze_monkey-imac VMware Fusion 683826[90]: Starting VMware Fusion:
Feb 25 10:09:03 ze_monkey-imac com.vmware.launchd.vmware[87]: Feb 25 10:09:03 ze_monkey-imac.local VMware Fusion 683826[90] <Notice>: Starting VMware Fusion:
Feb 25 10:08:56 ze_monkey-imac com.apple.usbmuxd[58]: usbmuxd-296.3 on Jul 25 2012 at 00:28:37, running 64 bit
Feb 25 10:08:57 ze_monkey-imac ntpd[54]: proto: precision = 1.000 usec
Feb 25 10:08:58 ze_monkey-imac loginwindow[72]: Login Window Application Started
Feb 25 10:08:58 ze_monkey-imac mds[70]: (Normal) FMW: FMW 0 0
Feb 25 10:09:02 ze_monkey-imac XProtectUpdater[56]: Ignoring new signature plist: Not an increase in version
Feb 25 10:09:02 ze_monkey-imac com.apple.launchd[1] (com.apple.xprotectupdater[56]): Exited with code: 252
Feb 25 10:09:12 ze_monkey-imac loginwindow[72]: **DMPROXY** Found `/System/Library/CoreServices/DMProxy'.
Feb 25 10:09:14 ze_monkey-imac airportd[28]: _doAutoJoin: Already associated to “ze_monkey-wireless”. Bailing on auto-join.
Feb 25 10:09:16 ze_monkey-imac loginwindow[72]:
        O3REQUIRE FAILED: ret == 0
           - file: /SourceCache/BezelServices/BezelServices-232.3/Utilities/Utilities.c
           - line: 91
Feb 25 10:09:16 ze_monkey-imac loginwindow[72]: Failed to lookup Bezel UI Server port: Bootstrap Unknown Service.
Feb 25 10:09:16 ze_monkey-imac loginwindow[72]: Login Window Started Security Agent
Feb 25 10:09:16 ze_monkey-imac com.apple.launchctl.LoginWindow[110]: com.apple.findmymacmessenger: Already loaded
Feb 25 10:09:17 ze_monkey-imac SecurityAgent[115]: Echo enabled
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I'm not sure what the "O3REQUIRE FAILED" relates to and also the control characters at the end!?! Does anyone know?
Also does anyone know how to fix this?
Any help you can provide would be useful.
Thanks

Ok, I've uninstalled both VMware and MacFUSE using the documented procedures taken from official websites.
I've rebooted and I still have the same problem... hangs before the login screen appears. I can still login via safe mode however.
Do you want me to post the output from the three steps again?
F.Y.I. Latest contents of "/var/log/System.log" from hang up ->
Mar 1 11:06:23 localhost bootlog[0]: BOOT_TIME 1362135983 0
Mar 1 11:06:25 localhost com.apple.launchd[1]: *** launchd[1] has started up. ***
Mar 1 11:06:37 localhost com.apple.launchd[1] (com.apple.powerd): Unknown value for key POSIXSpawnType: Interactive
Mar 1 11:06:37 localhost com.apple.launchd[1] (com.apple.sandboxd): Unknown value for key POSIXSpawnType: Interactive
Mar 1 11:06:44 localhost UserEventAgent[11]: starting CaptiveNetworkSupport as SystemEventAgent built Jun 13 2011 17:29:21
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CreateInterfaceWatchList:2788 WiFi Devices Found.
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Mar 1 11:06:44: --- last message repeated 1 time ---
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Mar 1 11:06:44 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptiveSCRebuildCache:81 Failed to get service order
Mar 1 11:06:45: --- last message repeated 1 time ---
Mar 1 11:06:45 localhost UserEventAgent[11]: CertsKeychainMonitor: configuring
Mar 1 11:06:47 localhost airportd[28]: _processDLILEvent: en1 attached (down)
Mar 1 11:06:47 localhost UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
Mar 1 11:06:47 localhost mDNSResponder[12]: mDNSResponder mDNSResponder-320.16 (Jul 19 2012 21:07:07) starting OSXVers 11
Mar 1 11:06:48 ze_monkey-imac configd[16]: setting hostname to "ze_monkey-imac.local"
Mar 1 11:06:48 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:48 ze_monkey-imac systemkeychain[40]: done file: /var/run/systemkeychaincheck.done
Mar 1 11:06:49 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:49: --- last message repeated 1 time ---
Mar 1 11:06:49 ze_monkey-imac mDNSResponder[12]: D2D_IPC: Loaded
Mar 1 11:06:49 ze_monkey-imac mDNSResponder[12]: D2DInitialize succeeded
Mar 1 11:06:50 ze_monkey-imac UserEventAgent[11]: ServermgrdRegistration cannot load config data
Mar 1 11:06:51 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CNSPreferences:60 Creating new preferences
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on ze_monkey-wireless because it is protected and not on the exception list
Mar 1 11:06:51 ze_monkey-imac UserEventAgent[11]: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
Mar 1 11:06:51 ze_monkey-imac configd[16]: network configuration changed.
Mar 1 11:06:54 ze_monkey-imac com.apple.ucupdate.plist[59]: ucupdate: Checked 1 update, no match found.
Mar 1 11:06:54 ze_monkey-imac com.apple.pfctl[66]: No ALTQ support in kernel
Mar 1 11:06:54 ze_monkey-imac com.apple.pfctl[66]: ALTQ related functions disabled
Mar 1 11:06:55 ze_monkey-imac launchdadd[21]: FAILURE: Could not send MIG reply: 0x10000003
Mar 1 11:06:56 ze_monkey-imac com.apple.usbmuxd[58]: usbmuxd-296.4 on Dec 21 2012 at 16:11:14, running 64 bit
Please also find attached the contects of the "/var/log/kernel.log" file in parallel. Not sure whether this is helpful?
Mar 1 11:06:41 localhost kernel[0]: Darwin Kernel Version 11.4.2: Thu Aug 23 16:25:48 PDT 2012; root:xnu-1699.32.7~1/RELEASE_X86_64
Mar 1 11:06:41 localhost kernel[0]: vm_page_bootstrap: 1007088 free pages and 33296 wired pages
Mar 1 11:06:41 localhost kernel[0]: kext submap [0xffffff7f80736000 - 0xffffff8000000000], kernel text [0xffffff8000200000 - 0xffffff8000736000]
Mar 1 11:06:41 localhost kernel[0]: zone leak detection enabled
Mar 1 11:06:41 localhost kernel[0]: standard timeslicing quantum is 10000 us
Mar 1 11:06:41 localhost kernel[0]: mig_table_max_displ = 73
Mar 1 11:06:41 localhost kernel[0]: AppleACPICPU: ProcessorId=0 LocalApicId=0 Enabled
Mar 1 11:06:41 localhost kernel[0]: AppleACPICPU: ProcessorId=1 LocalApicId=1 Enabled
Mar 1 11:06:41 localhost kernel[0]: calling mpo_policy_init for TMSafetyNet
Mar 1 11:06:41 localhost kernel[0]: Security policy loaded: Safety net for Time Machine (TMSafetyNet)
Mar 1 11:06:41 localhost kernel[0]: calling mpo_policy_init for Sandbox
Mar 1 11:06:41 localhost kernel[0]: Security policy loaded: Seatbelt sandbox policy (Sandbox)
Mar 1 11:06:41 localhost kernel[0]: calling mpo_policy_init for Quarantine
Mar 1 11:06:41 localhost kernel[0]: Security policy loaded: Quarantine policy (Quarantine)
Mar 1 11:06:41 localhost kernel[0]: Copyright (c) 1982, 1986, 1989, 1991, 1993
Mar 1 11:06:41 localhost kernel[0]: The Regents of the University of California. All rights reserved.
Mar 1 11:06:41 localhost kernel[0]: MAC Framework successfully initialized
Mar 1 11:06:41 localhost kernel[0]: using 16384 buffer headers and 10240 cluster IO buffer headers
Mar 1 11:06:41 localhost kernel[0]: IOAPIC: Version 0x11 Vectors 64:87
Mar 1 11:06:41 localhost kernel[0]: ACPI: System State [S0 S3 S4 S5]
Mar 1 11:06:41 localhost kernel[0]: PFM64 (36 cpu) 0xf10000000, 0xf0000000
Mar 1 11:06:41 localhost kernel[0]: [ PCI configuration begin ]
Mar 1 11:06:41 localhost kernel[0]: console relocated to 0xf10030000
Mar 1 11:06:41 localhost kernel[0]: PCI configuration changed (bridge=2 device=2 cardbus=0)
Mar 1 11:06:41 localhost kernel[0]: [ PCI configuration end, bridges 5 devices 18 ]
Mar 1 11:06:41 localhost kernel[0]: AppleIntelCPUPowerManagement: (built 16:32:09 Aug 23 2012) initialization complete
Mar 1 11:06:41 localhost kernel[0]: FireWire (OHCI) Lucent ID 5901 built-in now active, GUID 00254bfffea158e2; max speed s800.
Mar 1 11:06:41 localhost kernel[0]: USBMSC Identifier (non-unique): 575845393038544E34363432 0x1058 0x704 0x105
Mar 1 11:06:41 localhost kernel[0]: mbinit: done [64 MB total pool size, (42/21) split]
Mar 1 11:06:41 localhost kernel[0]: Pthread support ABORTS when sync kernel primitives misused
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeZlib kmod start
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeDataless kmod start
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeZlib load succeeded
Mar 1 11:06:41 localhost kernel[0]: com.apple.AppleFSCompressionTypeDataless load succeeded
Mar 1 11:06:41 localhost kernel[0]: AppleIntelCPUPowerManagementClient: ready
Mar 1 11:06:41 localhost kernel[0]: BTCOEXIST off
Mar 1 11:06:41 localhost kernel[0]: wl0: Broadcom BCM432b 802.11 Wireless Controller
Mar 1 11:06:41 localhost kernel[0]: 5.106.198.19
Mar 1 11:06:41 localhost kernel[0]: [IOBluetoothHCIController::setConfigState] calling registerService
Mar 1 11:06:41 localhost kernel[0]: rooting via boot-uuid from /chosen: 2EEFC1E1-687B-3DE5-A5B3-5C489A13EB53
Mar 1 11:06:41 localhost kernel[0]: Waiting on <dict ID="0"><key>IOProviderClass</key><string ID="1">IOResources</string><key>IOResourceMatch</key><string ID="2">boot-uuid-media</string></dict>
Mar 1 11:06:41 localhost kernel[0]: Got boot device = IOService:/AppleACPIPlatformExpert/PCI0@0/AppleACPIPCI/SATA@B/AppleMCP79AHCI/PR T0@0/IOAHCIDevice@0/AppleAHCIDiskDriver/IOAHCIBlockStorageDevice/IOBlockStorageD river/Hitachi HDT721064SLA360 Media/IOGUIDPartitionScheme/Customer@2
Mar 1 11:06:41 localhost kernel[0]: BSD root: disk0s2, major 14, minor 2
Mar 1 11:06:41 localhost kernel[0]: Kernel is LP64
Mar 1 11:06:44 localhost kernel[0]: NVEthernet: Ethernet address 00:25:4b:a1:58:e2
Mar 1 11:06:44 localhost kernel[0]: AirPort_Brcm4331: Ethernet address 00:25:4b:8c:0a:c3
Mar 1 11:06:44 localhost kernel[0]: IO80211Controller::dataLinkLayerAttachComplete(): adding AppleEFINVRAM notification
Mar 1 11:06:44 localhost kernel[0]: IO80211Interface::efiNVRAMPublished():
Mar 1 11:06:47 localhost kernel[0]: in func createVirtualInterface ifRole = 1
Mar 1 11:06:47 localhost kernel[0]: Created virtif 0xffffff800c2aa600 p2p0
Mar 1 11:06:48 localhost kernel[0]: NVDANV50HAL loaded and registered.
Mar 1 11:06:48 localhost kernel[0]: Previous Shutdown Cause: -128
Mar 1 11:06:48 localhost kernel[0]: SMC::smcInitHelper ERROR: MMIO regMap == NULL - fall back to old SMC mode
Mar 1 11:06:48 localhost kernel[0]: DSMOS has arrived
Mar 1 11:06:48 localhost kernel[0]: 00000000 00000020 NVEthernet::setLinkStatus - not Active
Mar 1 11:06:48 ze_monkey-imac kernel[0]: [AGPM Controller] build GPUDict by Vendor10deDevice0655
Mar 1 11:06:48 ze_monkey-imac kernel[0]: SMC::smcReadKeyAction ERROR: smcReadData8 failed for key BEMB (kSMCKeyNotFound)
Mar 1 11:06:48 ze_monkey-imac kernel[0]: AirPort: Link Down on en1. Reason 1 (Unspecified).
Mar 1 11:06:49 ze_monkey-imac kernel[0]: en1: 802.11d country code set to 'US'.
Mar 1 11:06:49 ze_monkey-imac kernel[0]: en1: Supported channels 1 2 3 4 5 6 7 8 9 10 11 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140 149 153 157 161 165
Mar 1 11:06:49 ze_monkey-imac kernel[0]: [ffffff800c29ec00][BNBTrackpadDevice::init][70.12] init is complete
Mar 1 11:06:49 ze_monkey-imac kernel[0]: [ffffff800c29ec00][BNBTrackpadDevice::handleStart][70.12] returning 1
Mar 1 11:06:49 ze_monkey-imac kernel[0]: [ffffff800c277600][AppleMultitouchHIDEventDriver::start] entered
Mar 1 11:06:49 ze_monkey-imac kernel[0]: MacAuthEvent en1 Auth result for: 00:e1:25:87:de:37 MAC AUTH succeeded
Mar 1 11:06:49 ze_monkey-imac kernel[0]: wlEvent: en1 en1 Link UP virtIf = 0
Mar 1 11:06:49 ze_monkey-imac kernel[0]: AirPort: Link Up on en1
Mar 1 11:06:49 ze_monkey-imac kernel[0]: en1: BSSID changed to 00:e1:25:87:de:37
Mar 1 11:06:50 ze_monkey-imac kernel[0]: AirPort: RSN handshake complete on en1
Mar 1 11:06:50 ze_monkey-imac kernel[0]: [ffffff800c1e1c00][AppleMultitouchDevice::start] entered
Mar 1 11:06:57 ze_monkey-imac kernel[0]: macx_swapon SUCCESS
Do you know anywhere else I can look for errors to help understand the problem further?
Any suggestions on what to do next?

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If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
If you are running Lion or later:
Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Mountain Lion or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it isthree times faster than wireless.

HELP!!! I can't get into my macbookpro I unticked something in user account and today iv gone to boot up and I'm getting grey screen asking for name and password and. My normal ones don't work? How can I gain access again?

Yesterday I was in user account settings trying to delete an extra user account that had appeared and I unticked something and today iv gone to boot up and iv got the grey screen asking for name and password and my normal ones sent working how do I get in agin? Any help would be appreciated thanks sam

Boot into your Recovery partition by holding down the Command and R keys on startup. Under the Utilities menu, open Terminal. When in Terminal type:
resetpassword
A small app will open that will allow you to reset the password for a given user (hopefully you still have an admin home directory?). Type in your new password - twice - and then reboot and use your new password.
Clinton

2013 MBP 2.5 i5 4Gig 500MBHDD boots slow. It finishes post in the same time as an identical MBP, and then hangs for 30 seconds on one of the ethernet adapters, before finishing the boot. Once booted it is normal.   Turning off airport changes nothig.

2013 MBP 2.5 i5 4Gig 500MBHDD boots slow. It finishes post in the same time as an identical MBP, and then hangs for 30 seconds on one of the ethernet adapters, before finishing the boot. Once booted it is normal.   Turning off airport changes nothing. Hardline adapter is not plugged in. Thunderbolt adapter is not used. Bluetooth is off. Did this out of box. Identical MBP boots to login screen in 36 seconds. Disk repair, permission repair, and safe mode boot have
already been done, no change. Boot time is consistent. Hangs at the same place each time. Right after post. Bad adapter?
Comments, solutions please.

... and so ... now a few days later, success.   I ran
your software but it told me nothing I hadn 't seen
in verbose boot.
Consistently, following good post, the boot hung
for 30 seconds on the adapters, (cards, chips, NICs.
Ethernet cards, whatever you prefer to call them)
either the airport card or the hard line. It would then
proceed at normal pace to the login screen.
Since it came out of the box that way, software
conflict was not a go. I guessed glitched driver or
fetch instruction. I zapped the PRAM (cleared
NVRAM) and reloaded the OS, updates, Garage Band,
iPhoto (one of Apple's true dogs in an otherwise
rare arena) iMovie, Photoshop, Lightroom, their
updates, and my files.   MBP pro now boots to login
in 31 seconds. Note I have turned off as much gee
whiz, rubber band scroll, global swiping and other
hubcaps and hood ornaments as befits how like
things ... and turned off all the Asian and other fonts
I will. ever use.
Best guess ... corrupt driver or corrupt fetch script ...
bad server squirt at factory load.
Thanks for your help, Cheers!

When my Mac battery dies and I turn it back on, it always crashes on the grey screen with the progress bar, then it restarts (taking forever) and does not remember any of the programs I was running. MacBook Pro 13 inch running Mavericks

When my Mac battery dies and I turn it back on, it always crashes on the grey screen with the progress bar, then it restarts (taking forever) and does not remember any of the programs I was running. MacBook Pro 13 inch running Mavericks

http://osxdaily.com/2014/10/17/os-x-yosemite-installation-stuck/
also use the Command-L to view logs during installation

Hi my iMAc 27 inch starts up to the grey screen with apple logo and loading bar underneath it loads halfway then freezes up and shut down after a while please help

Hi my iMAc 27 inch starts up to the grey screen with apple logo and loading bar underneath it loads halfway then freezes up and shut down after a while please help

Try the tips listed here Mac OS X: Gray screen appears during startup - Apple Support

My mac froze in an application so I shut it down by powering off with button, now when I try to turn it on I have a grey screen with Apple loge and the timer swirling but it doesn't get past this, please help!

I Shut down my Mac by holding in the power button after my iMac froze and now when I try to turn it back it on all I get is the grey screen with Apple loge and the timer and doesn't get any further. I have tried the diagnostic test but nothing was found.

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
To restart an unresponsive computer, press and hold the power button for a few seconds until the power shuts off, then release, wait a few more seconds, and press it again briefly.
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 a desktop Mac hangs at a plain gray screen with a movable cursor, the keyboard may not be recognized. Press and hold the button on the side of an Apple wireless keyboard to make it discoverable. If need be, replace or recharge the batteries. If you're using a USB keyboard connected to a hub, connect it to a built-in port.
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 in OS X 10.9 or earlier, or if a firmware password is set, or if the startup volume is 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.

My macbook is stuck on a grey screen with language select and every time i click english it brings me back to the same gray page what do i do?

My macbook Pro is stuck on a grey screen with language select and every time i click english it brings me back to the same gray page with language select what do i do? Also i dont have enough monet to go to the apple store to get it fix and another thing this happen after i tried to factory reset it without the disck uising coomans i found on youtube.Lastly befor doing the comands my macbook would open any applications and the finder would just blink on and off on the dock.
Heres the link http://www.youtube.com/watch?v=Q5e5thk0O9o

Shut down your computer and disconnect all peripherals (keyboard & mouse if pertinent) from your computer. Now reboot.
If the Mac starts up normally, shut it down again and then plug in one of the peripherals (keyboard or mouse first) and start up your computer again. If it does so successfully repeat the process, adding one peripheral at a time until your Mac acts up. At that point, disconnect the last peripheral you added, reboot your Mac and search the peripheral vendor's website for an updated driver.
If no driver exists or the problem remain after installing the new driver, try a different cable or a different port on your Mac.
If none of the above works, again disconnect all peripherals from your Mac, hold down the "shift" key to start up in "Safe Boot" mode.
If the Mac starts up correctly, restart without pressing the "shift" key.
If your computer still does not start up properly, shut it down and restart it while holding down the Apple+Option-P-R keys; keep holding "all 4 keys" down until you hear the startup sound "twice."
If none of the above work Disconnect all peripherals from your computer. Boot from your install disc & run Repair Disk from the utility menu. To use the Install Mac OS X disc, insert the disc, and restart your computer while holding down the C key as it starts up.
Select your language.
Once on the desktop, select Utility in the menu bar.
Select Disk Utility.
Select the disk or volume in the list of disks and volumes, and then click First Aid.
Click Repair Disk.
(If Disk Utility cannot repair, you will need a stronger utility (3rd party) - Diskwarrior or Techtool PRO)
Restart your computer when done.
Repair permissions after you reach the desktop-http://docs.info.apple.com/article.html?artnum=25751 and restart your computer.
Remove any 3rd party ram.
Reinstall Leopard - This will install a "fresh" copy Leopard without archiving old system files but leaves the rest of your files in place.
If you still want to restore your computer to factory level...
Start up from your install disc, go to Disk Utility and select the disk and click erase - to securely erase data click Security Options and Erase Free Space which will entirely wipe your disk, overwriting it with zeros so that no data is recoverable.
To restore read the instructions in the Mac OS X v10.5 Leopard - Installation and Setup Guide PDF

What happens between the chime & the grey screen on boot?

Hi,
My Mac Pro has recently started taking up to 30secs to reach the grey screen when booting. The chime happens shortly after (re)starting, and then there's a significant pause, where nothing seems to happen (even the Apple Display stays in stand-by mode), before the HDD starts reading and the grey screen appears. I tried using Verbose mode, but the data it prints to screen doesn't start until after the long pause, so…
Anyone know what the Mac Pro could be doing? I've no other problems with the machine.
Thanks,
S.

Hi,
My issue has been solved, apparently by a combination of a PRAM reset and re-selecting the startup disk in System Preferences. My machine now moves from chime to Apple logo almost instantaneously
The AppleCare representative was thorough and walked me through various steps that narrowed down the issue, and his hesitant conclusion was that somehow, as hatter suggested, the Mac was taking its time to find the appropriate boot device - possibly as a result of a change I had made in my BootCamp partition (Windows 7) or as a result of a previous PRAM reset (as hatter suggested).
Case closed! Yay!
S.
EDIT: So, Japamac, it was presumably the "system selection" part of the post-Chime process that was causing the delay. Didn't see your post till I returned to respond with this post, but thanks for the effort anyway
Message was edited by: SiRGadaBout

IMBP 13" (2009 revision) display a prohibition sign w/grey screen on boot

Hello,
I'm new to this OS, which is a iMBP 13" (2009 revision). I'm experiencing abnormal boot sequence. The bootup screen display a prohibition sign with a grey screen upon boot after installing Security Update 2010-001 for Snow Leopard. There is no error message I can write down nor excessive fan noise coming out from the laptop.
Thanks for your help
Tony from New Zealand
Computer Spec: 13-inch: 2.26GHz
13-inch: 2.53GHz
W/ v10.6.2
Intel Core 2 Duo
2GB Memory
500GB hard drive
SD card slot
NVIDIA GeForce 9400M graphics
(2009 revision)
Message was edited by: TonySNZ

Hello Tony from New Zealand (great place, I visited once):
Welcome to Apple discussions.
Take a look at this article to see if it helps you fix the problem:
http://support.apple.com/kb/TS2570
If it does not, I think I would reinstall OS X 10.6 (upgrade from your software install DVD) over your existing system. Then I would run software update to bring everything to current levels.
A good backup before any software change is always a very good idea (I use both Time Machine and SuperDuper).
Barry

My MacBook has a grey screen with a folder and a question mark in the middle what does this mean?

My MacBook has a grey screen with a folder and a question mark in the middle what does this mean?

It means a valid system cannot be found. You need to reinstall OS X.
If you have Snow Leopard:
Reinstall OS X without erasing the drive
1. Repair the Hard Drive and Permissions
Boot from your Snow Leopard Installer disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Reinstall Snow Leopard
If the drive is OK then quit DU and return to the installer. Proceed with reinstalling OS X. Note that the Snow Leopard installer will not erase your drive or disturb your files. After installing a fresh copy of OS X the installer will move your Home folder, third-party applications, support items, and network preferences into the newly installed system.
Download and install Mac OS X 10.6.8 Update Combo v1.1.
If you have Lion or later:
Reinstall Lion, Mountain Lion, or Mavericks without erasing drive
Boot to the Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported then click on the Repair Permissions button. When the process is completed, then quit DU and return to the main menu.
Reinstall Mountain Lion or Mavericks
OS X Mavericks- Reinstall OS X
OS X Mountain Lion- Reinstall OS X
OS X Lion- Reinstall Mac OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

My MacBook will only turn on to a grey screen with a file and a question mark flashing on the screen

When I turn my MacBook on a grey screen with a file and question mark in the center of the screen flashing. What can I try to
get out of this screen?

That folder with the question mark icon means that the MacBook can't find the boot directory. That can either mean it can't find the hard drive or the Operating System data on the hard drive is somehow corrupted.
Put your install DVD into the optical drive (CD/DVD drive) and reboot. Be sure to either use the disc that came with your Mac, or, if you installed a later Mac OS X version from disc, use the newer disc. As soon as you hear the boot chime, hold down the "c" key on your keyboard (or the Option Key until the Install Disk shows up) until the apple shows up. That will force your MacBook to boot from the install DVD in the optical drive.
Or if you are running 10.7 Lion, boot from the recovery partition (Command +R on boot) and use Disk Utility to repair your OS 10.7 partition.
When it does start up, you'll see a panel asking you to choose your language. Choose your language and press the Return key on your keyboard once. It will then present you with an Installation window. Completely ignore this window and click on Utilities in the top menu and scroll down to Disk Utility and click it. When it comes up is your Hard Drive in the list on the left?
If it is, then click on the Mac OS partition of your hard drive in the left hand list. Then select the First Aid Tab and run Repair Disk. The Repair Disk button won't be available until you've clicked on the Mac OS partition on your hard drive. If that repairs any problems run it again until the green OK appears and then run Repair Permissions. After repairing use Startup Disk from the same menu to choose your hard drive for restarting from your hard drive.
If your hard drive isn’t recognized in Disk Utility then your hard drive is probably dead.

My macbook pro doesn't bootbeyond the grey screen with apple icon and spinning wheel.

My macbook pro doesn't boot beyond the grey screen with apple icon and spinning wheel. I used the "Option" button to access the Disk Utility function and run Repair Disk and Repair Disk Permissions. Should I restart my computer?

The following support article is somewhat outdated. Where it refers to booting from an installation disc, you should boot from your recovery partition (if running 10.7 or later) by holding down the key combination command-R at the chime.
Mac OS X: Gray screen appears during startup

Grey screen at boot up and then hang up

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