IMac starts, shuts down - gray screen w/ progress bar

I have a 2007 iMac and it is now shutting down every time I try and restart it. I see a gray screen with the apple logo, the spinning wheel and the progress bar upon every restart. The progress bar never finishes and it shuts down.
I have restarted with command-option-P-R - same result
I have restarted with command-S - same result
I have restarted with command-C - it kept spitting the disc out then it would shut down again
I have restarted with command-V and it said something about incorrect block counts. It also at the very end, just before shutting down again said "Disk Full Error" and "killing all processes done". I had to snap a picture with my phone to see what it actually said since it happened so fast. I knew the hard drive was almost full and was actually backing up to and external hard drive just before this issue began.
Is there anyway for me to force the computer to stay on long enough for me to remove some items and free up space? Like an override somehow?
Thanks so much in advance for the help!
Shayna

What Mac OS X are you running?
Have you tried this article: http://support.apple.com/kb/TS2570

Similar Messages

IMac keep shutting down black screen then have to hold power button down then turn it on again i did this 4 times in all of a period of 5 minutes what to do ??

iMac keep shutting down black screen then have to hold power button down then turn it on again i did this 4 times in all of a period of 15 minutes what to do ??

Hmm. The problem still may be the RAM - Apple buys the RAM it puts in its machines from third-party vendors (usually Hynix) so it could be a RAM problem.
There are a couple of things that you can do yourself before taking your machine into an Apple Store or an AASP... download and run an application named Rember that will run a RAM test for you - let it run for a couple of hours or even overnight. If it turns out that your RAM is faulty, Rember will let you know. If it is faulty, then you have a couple of options - replace the RAM yourself or (particularly if you're under warranty still) take the machine to an Apple Store or AASP and have them replace the RAM.
If Rember finds no fault with the RAM, then you'll need to take it into an Apple Store/AASP and get a free diagnosis on the machine. Three beeps do usually indicate faulty RAM, but if it tests good with Rember you likely have another problem - it could be something as simple as the RAM, somehow, not seated correctly or signs of another hardware problem.
Run Rember first... call back with results.
Good luck,
Clinton

Why is my Snow Leopard 10.6.8 suddenly giving me a gray screen and progress bar after I've turned it on? The progress bar takes 4-5 minutes to complete then signing on with my password and all other operations are normal. Solution? Many thanks.

Why is my Snow Leopard 10.6.8 suddenly giving me a gray screen and progress bar after I've turned it on? The progress bar takes 4-5 minutes to complete then signing on with my password and all other operations are normal. Solution? Many thanks.

It's starting in safe mode > http://support.apple.com/kb/HT1564
First of all, do a PRAM reset. If it doesn't help, open Terminal and type:
sudo nvram boot-args=""

HT3964 After updated to Maverick system is not starting , keeping light gray screen without progress

I updated first to Mountain Lion my Mac becomes slow, after trying to solve I updated again to Maverick. But my Mac after becomes slow not starting, so I restore a backup, but now some times doesn't start, stops on gray screen ...
I tried comm opt p r and other commands but still not solve. Should I format and install new system from zero?

HCQuintao,
try this first: boot your MacBook Pro into Recovery mode by holding down a Command key and the R key as it starts up. Once the Mac OS X Utilities menu appears, select Disk Utility. On the left-hand side of the Disk Utility window, select your internal disk’s boot partition (typically called “Macintosh HD”). On the right-hand side, press the Verify Disk button if it’s not greyed out; if it is greyed out, or if it reports that errors were found, press the Repair Disk button. Once the verification/repair is completed, exit Disk Utility and select Restart from the Apple menu to restart in normal mode. Does it still stop on the grey screen?

Computer shuts down while loading the progress-bar

SPECS:
MacBookPro 13-inch
Early-2011
I recently installed Yosemite in my computer, hours later while I was using the new OS X my computer freezed. I held the power button and it turned off. Now, I'm trying to power on the computer and when the progress bar is in 50% the computer turns off.
I need help ASAP

rthec wrote:
I've seen some of the threads regarding this but none of the fixes work for me. I formatted my hard drive for reasons other than this so it has a fresh install of Windows XP Home Edition, the latest video drivers, and the latest Flash. When my wife plays Cityville or Castleville, her computer shuts down. I checked the system logs and nothing is there regarding the shutdown. I tried changing the hardware exiliration setting and that didn't help. We've tried the games on Firefox and IE 8 with the latest updates and it still doesn't work. Any help will be appriciated.
The operating system, XP in this particular case, will shutdown the system to prevent damage to hardware if it encounters an instruction which can damage the system. It will usually logs an event which you can view by clicking Start, then in the Run field, type eventvwr.msc and click OK. Then open the both the "System" and "Application" submenus and look for events which are prefixed with a white X inside a red circle. The 6th column from the left will contain the Event ID which can be used to try and track down the source of the problem.

IMac G5 shuts down instead of going to sleep

Recently, my G5 iMac started shutting down instead of going to sleep. I have reset all of the sleep controls but it still shuts down. Does anyone have any ideas? I am running 10.5.5

Have you vacuumed the fans and the air vents? You can also reset the [SMU|http://docs.info.apple.com/article.html?artnum=300908] and check in Console>system log for any messages about "maximum temperature exceeded for 30 seconds".

My MacBook Pro shuts down within seconds after starting with a Gray Screen and Apple Logo, a bar comes at the bottom.

My MacBook Pro starts with a Gray Screen and Apple Logo, a bar comes at the bottom, but after few seconds the machine shuts down. This was bought approx 1 year back. Please help!!

jayanta.ray,
which model MacBook Pro do you have (did you buy it new?), and which version of OS X is installed on it?

I have an iMac from 2008. When I start I get gray screen with apple and turning gear. Next blue screen. Then light blue screen with turning gear. Back to blue screen. Now just back and forth blue to light blur

I have an iMac from 2008. When I start I get gray screen with apple and turning gear. Next blue screen. Then light blue screen with turning gear. Back to blue screen. Now just back and forth blue to light blur

Reinstall OS X:
Reinstall OS X without erasing the drive
Do the following:
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 the Combo Updater for the version you prefer from support.apple.com/downloads/.
Reinstalling Lion Without Erasing the 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 the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
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 click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

Since I installed Mountain Lion, my iMac has shut down after 15-20 minutes. I have adjusted screen saver, shut down time, and sleep after. Nothing seems to help, any ideas?

Since I installed Mountain Lion, my iMac has shut down after 15-20 minutes. I have adjusted screen saver, shut down time, and sleep after. Nothing seems to help, any ideas?

As old as your iMac is, have you cleaned out the dust? Dust buildup can lead to over heating issues. Remove any and all things plugged into it including the power cord, Remove the RAM access grille. Vacuum all openings starting with the RAM access area (air intake). Vacuum all ports and plugs, DVD slot and the opening across the top of the rear of the body. Blow compressed air through all your openings and vacuum again to remove any dust you loosend. Reinstall the RAM grille. Plug in the keyboard and mouse if not blue tooth. Insert power cord...
You are now in a perfect position to do a
SMC RESET
http://support.apple.com/kb/HT3964
Shut down the computer.
Unplug the computer's power cord and ALL peripherals.
Wait 15 seconds.
Attach the computers power cable.
Wait another 5 seconds and press the power button to turn on the computer.
It is the 5 second timing that initiates the reset.
Here is a link to a Widget to monitor your temps and other operations:
http://islayer.com/apps/istatpro/

I have an iMac that I purchased back in 2010 and over the past 9 month or less my computer just started shutting down while someone was in the process or working on it. What could this come from? Is there a simple solutions to this problem?

I have an iMac that I purchased back in 2010 and over the past 9 month or less my computer just started shutting down while someone was in the process or working on it. What could this come from? Is there a simple solutions to this problem?

Which model iMac do you have? http://support.apple.com/kb/HT1758 How to identify iMac models
Which OS is currently installed?
Check out KB Articles: http://support.apple.com/kb/HT3964 Intel-based Macs: Resetting the System Management Controller (SMC) and http://support.apple.com/kb/HT1379 Resetting your Mac's PRAM and NVRAM
If not of the above works and you have AC, call them. Let them deal w/it. Otherwise, take your iMac down to your local AS or an AASP. Diagnostic testing is FREE!
You can also research for a solution on YouTube's "How To" website and iFixit.

My iMac 10.8.5 recently started shutting down and giving me an warning about why asking me to send a copy of the issue to Apple.. what can I do?

Recently my iMac running 10.8.5 started shutting down in the middle of things like saving pics or emailing.   An accompanying error message told me to contact Apple support.. here I am. If I rebooted it runs ok for a few more days.   I enjoy YouTube and Hampster any suggestions?
D from Boston

First of all thank you for your help. Second, I edited out the Anonymous UID.. and do not see anything named shutdown, Stall, Spin or Hang .... If there are any other suggestions you could make, I am so listening.
Interval Since Last Panic Report: 3285 sec
Panics Since Last Report:          1
Anonymous UUID:                    Edited out....
Sun Oct 6 10:20:08 2013
panic(cpu 1 caller 0xffffff7f97d5c281): NVRM[0/2:0:0]: Read Error 0x00000100: CFG 0xffffffff 0xffffffff 0xffffffff, BAR0 0xd2000000 0xffffff80979ab000 0x094700a1, D0, P0/4
Backtrace (CPU 1), Frame : Return Address
0xffffff80976537f0 : 0xffffff801761d636
0xffffff8097653860 : 0xffffff7f97d5c281
0xffffff8097653920 : 0xffffff7f97e2f1f6
0xffffff8097653960 : 0xffffff7f97e2f254
0xffffff80976539d0 : 0xffffff7f980eaac9
0xffffff8097653af0 : 0xffffff7f97e57ad1
0xffffff8097653b10 : 0xffffff7f97d6303f
0xffffff8097653bc0 : 0xffffff7f97d60ad6
0xffffff8097653dc0 : 0xffffff7f97d61b41
0xffffff8097653ea0 : 0xffffff7f97cfd80a
0xffffff8097653ef0 : 0xffffff7f99707838
0xffffff8097653f40 : 0xffffff7f99706783
0xffffff8097653f60 : 0xffffff801763e26e
0xffffff8097653fb0 : 0xffffff80176b3257
      Kernel Extensions in backtrace:
         com.apple.NVDAResman(8.1.6)[EA4F9902-5AAE-3F1D-A846-3796221C8C91]@0xffffff7f97c fb000->0xffffff7f97f9dfff
            dependency: com.apple.iokit.IOPCIFamily(2.8)[2FAEA49C-EA4C-39C6-9203-FC022277A43C]@0xffffff 7f97c51000
            dependency: com.apple.iokit.IONDRVSupport(2.3.7)[F16E015E-1ABE-3C40-AC71-BC54F4BE442E]@0xff ffff7f97ce7000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[9928306E-3508-3DBC-80A4-D8F1D87650D7]@0 xffffff7f97ca4000
         com.apple.nvidia.nv50hal(8.1.6)[3455BCFE-565A-3FE5-9F0B-855BCB6CC9B3]@0xffffff7 f97fa9000->0xffffff7f9827cfff
            dependency: com.apple.NVDAResman(8.1.6)[EA4F9902-5AAE-3F1D-A846-3796221C8C91]@0xffffff7f97c fb000
            dependency: com.apple.iokit.IOPCIFamily(2.8)[2FAEA49C-EA4C-39C6-9203-FC022277A43C]@0xffffff 7f97c51000
         com.apple.driver.AGPM(100.13.12)[40BECF44-B2F1-3933-8074-AD07B38CA43A]@0xffffff 7f99705000->0xffffff7f99716fff
            dependency: com.apple.iokit.IOPCIFamily(2.8)[2FAEA49C-EA4C-39C6-9203-FC022277A43C]@0xffffff 7f97c51000
            dependency: com.apple.driver.IOPlatformPluginFamily(5.4.1d11)[D57AB2EB-A2D1-3002-BDAA-E61E2 3A9D8F7]@0xffffff7f98722000
            dependency: com.apple.iokit.IONDRVSupport(2.3.7)[F16E015E-1ABE-3C40-AC71-BC54F4BE442E]@0xff ffff7f97ce7000
            dependency: com.apple.iokit.IOGraphicsFamily(2.3.7)[9928306E-3508-3DBC-80A4-D8F1D87650D7]@0 xffffff7f97ca4000
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12F37
Kernel version:
Darwin Kernel Version 12.5.0: Mon Jul 29 16:33:49 PDT 2013; root:xnu-2050.48.11~1/RELEASE_X86_64
Kernel UUID: B1B58405-A2B2-3C44-B25D-495053D52AB5
Kernel slide:     0x0000000017400000
Kernel text base: 0xffffff8017600000
System model name: iMac9,1 (Mac-F2218FA9)
System uptime in nanoseconds: 3823891658319
last loaded kext at 3540169233671: com.apple.driver.AppleUSBCDC          4.1.23 (addr 0xffffff7f99857000, size 16384)
last unloaded kext at 3683723440921: com.apple.driver.AppleUSBCDC          4.1.23 (addr 0xffffff7f99857000, size 12288)
loaded kexts:
com.apple.filesystems.msdosfs          1.8.1
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.driver.AudioAUUC          1.60
com.apple.iokit.IOBluetoothSerialManager          4.1.7f2
com.apple.driver.AGPM          100.13.12
com.apple.driver.AppleMikeyHIDDriver          124
com.apple.driver.AppleHDA          2.4.7fc2
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport          4.1.7f2
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.ApplePolicyControl          3.4.5
com.apple.driver.ACPI_SMC_PlatformPlugin          1.0.0
com.apple.driver.AppleMikeyDriver          2.4.7fc2
com.apple.driver.AppleSMBusPCI          1.0.11d1
com.apple.driver.AppleLPC          1.6.3
com.apple.driver.AppleBacklight          170.3.5
com.apple.GeForce          8.1.6
com.apple.driver.AppleUpstreamUserClient          3.5.12
com.apple.driver.AppleMCCSControl          1.1.11
com.apple.filesystems.autofs          3.0
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          34
com.apple.driver.AppleIRController          320.15
com.apple.iokit.SCSITaskUserClient          3.5.6
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCIBlockStorage          2.3.5
com.apple.driver.AppleUSBHub          623.4.4
com.apple.driver.AirPort.Brcm4331          615.20.17
com.apple.driver.AppleAHCIPort          2.6.6
com.apple.nvenet          2.0.19
com.apple.driver.AppleUSBOHCI          621.4.0
com.apple.driver.AppleUSBEHCI          621.4.6
com.apple.driver.AppleFWOHCI          4.9.9
com.apple.driver.AppleHPET          1.8
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleACPIButtons          1.8
com.apple.driver.AppleSMBIOS          1.9
com.apple.driver.AppleACPIEC          1.8
com.apple.driver.AppleAPIC          1.7
com.apple.driver.AppleIntelCPUPowerManagementClient          214.0.0
com.apple.nke.applicationfirewall          4.0.39
com.apple.security.quarantine          2.1
com.apple.driver.AppleIntelCPUPowerManagement          214.0.0
com.apple.iokit.IOSerialFamily          10.0.6
com.apple.driver.DspFuncLib          2.4.7fc2
com.apple.iokit.IOAudioFamily          1.9.2fc7
com.apple.kext.OSvKernDSPLib          1.12
com.apple.iokit.IOFireWireIP          2.2.5
com.apple.iokit.IOBluetoothHostControllerUSBTransport          4.1.7f2
com.apple.driver.AppleHDAController          2.4.7fc2
com.apple.iokit.IOHDAFamily          2.4.7fc2
com.apple.iokit.IOSurface          86.0.4
com.apple.iokit.IOBluetoothFamily          4.1.7f2
com.apple.driver.AppleSMC          3.1.5d4
com.apple.driver.IOPlatformPluginLegacy          1.0.0
com.apple.driver.IOPlatformPluginFamily          5.4.1d11
com.apple.driver.AppleGraphicsControl          3.4.5
com.apple.driver.AppleBacklightExpert          1.0.4
com.apple.nvidia.nv50hal          8.1.6
com.apple.driver.AppleSMBusController          1.0.11d1
com.apple.NVDAResman          8.1.6
com.apple.iokit.IONDRVSupport          2.3.7
com.apple.iokit.IOGraphicsFamily          2.3.7
com.apple.kext.triggers          1.0
com.apple.driver.AppleUSBHIDKeyboard          170.2.4
com.apple.driver.AppleHIDKeyboard          170.2.4
com.apple.driver.AppleUSBHIDMouse          175.8
com.apple.iokit.IOUSBHIDDriver          623.4.0
com.apple.driver.AppleHIDMouse          175.8
com.apple.iokit.IOSCSIBlockCommandsDevice          3.5.6
com.apple.driver.AppleUSBMergeNub          621.4.6
com.apple.iokit.IOUSBMassStorageClass          3.5.2
com.apple.driver.AppleUSBComposite          621.4.0
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.5.6
com.apple.iokit.IOBDStorageFamily          1.7
com.apple.iokit.IODVDStorageFamily          1.7.1
com.apple.iokit.IOCDStorageFamily          1.7.1
com.apple.iokit.IOAHCISerialATAPI          2.5.5
com.apple.iokit.IOSCSIArchitectureModelFamily          3.5.6
com.apple.iokit.IOUSBUserClient          630.4.4
com.apple.iokit.IO80211Family          530.5
com.apple.iokit.IOAHCIFamily          2.5.1
com.apple.iokit.IONetworkingFamily          3.0
com.apple.iokit.IOUSBFamily          630.4.5
com.apple.driver.NVSMU          2.2.9
com.apple.iokit.IOFireWireFamily          4.5.5
com.apple.driver.AppleEFINVRAM          2.0
com.apple.driver.AppleEFIRuntime          2.0
com.apple.iokit.IOHIDFamily          1.8.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          220.3
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          345
com.apple.iokit.IOStorageFamily          1.8
com.apple.driver.AppleKeyStore          28.21
com.apple.driver.AppleACPIPlatform          1.8
com.apple.iokit.IOPCIFamily          2.8
com.apple.iokit.IOACPIFamily          1.4
com.apple.kec.corecrypto          1.0
System Profile:
Model: iMac9,1, BootROM IM91.008D.B08, 2 processors, Intel Core 2 Duo, 3.06 GHz, 4 GB, SMC 1.45f0
Graphics: NVIDIA GeForce GT 130, NVIDIA GeForce GT 130, PCIe, 512 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1067 MHz, 0x802C, 0x31364A53463235363634485A2D3147314631
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8E), Broadcom BCM43xx 1.0 (5.106.98.100.17)
Bluetooth: Version 4.1.7f2 12718, 3 service, 21 devices, 3 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: ST31000342ASQ, 1 TB
Serial ATA Device: OPTIARC DVD RW AD-5670S
USB Device: Built-in iSight, apple_vendor_id, 0x8502, 0x24400000 / 3
USB Device: Photosmart Premium C309g-m, 0x03f0 (Hewlett Packard), 0x7d11, 0x24100000 / 2
USB Device: composite_device, 0x090c (Silicon Motion, Inc. - Taiwan), 0x2000, 0x26400000 / 3
USB Device: Keyboard Hub, apple_vendor_id, 0x1005, 0x26200000 / 2
USB Device: Apple Keyboard, apple_vendor_id, 0x021d, 0x26220000 / 4
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 3
USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0304, 0x04300000 / 2
USB Device: BRCM2046 Hub, 0x0a5c (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8215, 0x06110000 / 3

Imac won't shut down, blue screen with spinig wheel is on and computer never shuts until I hold the power button down and shut it manualy..

Imac won't shut down,
blue screen with spinig wheel is on and computer never shuts until I hold the power button down and shut it manualy..

This is the instruction article for Intel-based Macs:
http://support.apple.com/kb/HT3964
Your profile does not indicate the type of Mac you are using.
Barry

IMac 27 shuts down at intro

hello my iMac 27 shuts down at intro or when i trying to set it up ,i think its Fan or HDD but not sure , maybe anyone knows where is a problem ?

Is it an earlier iMac that came with say a 10.6 Install Disc?
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

IMac wont shut-down

Hi folks,
i`ve got an Intel iMac 24 inch 2.16 GHz Intel Core 2 Duo with Mac OS X 10.4.11 installed. Very often the iMac wont shut-down. When i choose the shut-down command from the Apple menu the Finder quits, the Icons on the desktop, the Dock and the Menu bar disappear. Then the screen turns blue and i see the grey spinning wheel but it wont go further. I always have to disconnect the power cord to shut-down my iMac. Here is what the system.log says:
Mar 18 18:28:49 macvier shutdown: halt by anita:
Mar 18 18:28:50 macvier SystemStarter[446]: authentication service (457) did not complete successfully
Mar 18 18:28:50 macvier Parallels: Stopping DHCP/NAT daemon...
Mar 18 18:28:51 macvier Parallels: Unloading Network module...
Mar 18 18:28:52 macvier Parallels: Unloading ConnectUSB module...
Mar 18 18:28:52 macvier Parallels: Unloading Monitor module...
Mar 18 18:28:54 macvier kernel[0]: [Parallels] Parallels VM observer thread stopped
Mar 18 18:28:54 macvier Parallels: Unloading Hypervisor module...
Mar 18 18:28:54 macvier kernel[0]: [Parallels] Parallels Hypervisor exited.
Mar 18 18:28:54 macvier Parallels: Shutdown complete.
Mar 18 18:28:54 macvier SystemStarter[446]: The following StartupItems failed to properly start:
Mar 18 18:28:54 macvier SystemStarter[446]: /System/Library/StartupItems/AuthServer
Mar 18 18:28:54 macvier SystemStarter[446]: - execution of Startup script failed
Can anyone help me? I dont know how to get rid of this problem.
Greets
TF
Message was edited by: Computerdoc
Message was edited by: Computerdoc

Perhaps this is an app booting on launch that's not helping matters. Here are some ways of preventing items from opening automatically ...
If the login window appears when you start up your computer, hold down the Shift key and click the Login button. Continue to hold down the Shift key until you see the Dock.
If you don’t see the login window when you start up your computer, hold down the Shift key when you see the progress bar in the startup window. Continue holding down the key until your desktop appears and the startup completely finishes.
Choose Apple menu > System Preferences, and then click Accounts. Select an administrator’s account, and the click Login Items. If any unwanted items appear in the list of items that open automatically, select the item and click the Delete - button.
You could try resetting the SMC. http://support.apple.com/kb/HT1543
Carolyn

IMac's shutting down

My wife and I both have the 20" iMac. Model ID "iMac 8,1. Today they both started shutting down randomly, like a complete power loss shut down. Once powered off, they will not turn back on, you hit the power button and nothing happens. The only thing that gets them back on is if I leave them unplugged for a few minutes, then they will power on but only after hitting the power button twice, it never works the first time. Once on the computers randomly shut down after 3-10 minutes and the process starts over. It doesn't matter if they're being used heavily or just sitting at the log in screen. Both iMacs have the exact same symptoms and started happening on the same day. Anyone know whats going on?

Well, it looks like I actually have a power issue in the room, maybe there's low voltage or a short somewhere. I moved them to another room in the house and they seem to be working fine.

IMac starts, shuts down - gray screen w/ progress bar

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