Logout: white screen + endless spinning wheel

Hi,
We're using our 2011 IMAC at home with 4 users of our family; each of us has it's own login. When one of our kids logs-off, he turns to get a white screen with a spinning wheel (not always, but undefined frequently). The problems seems to be initiated after the Mavericks 10.9.4 patch, but still exist after 10.9.5.
Please help, as the only option we have is to restart the machine every crash.
Also no error log has been saved...
6/10/14 18:08:06,019 apsd[64]: Unable to bootstrap_look_up connection port 'com.apple.SocialPushAgent' for user 501: Unknown service name
6/10/14 18:09:49,955 com.apple.launchd[1]: (com.apple.qtkitserver[9843]) Could not terminate job: 3: No such process
6/10/14 18:09:49,955 com.apple.launchd[1]: (com.apple.qtkitserver[9843]) Using fallback option to terminate job...
6/10/14 18:10:01,496 com.apple.launchd[1]: (com.apple.WebKit.Networking.DE77AB1E-6B57-4ADF-A8D5-3363F5C76E66[9755]) Exited with code: 1
6/10/14 18:10:01,531 Dock[9682]: CGSReleaseWindow: Invalid window 454
6/10/14 18:10:01,532 Dock[9682]: CGSReleaseWindow: Invalid window 479
6/10/14 18:10:01,627 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,628 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,628 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,628 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,628 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,628 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,628 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,629 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,630 WindowServer[4420]: CGXGetConnectionProperty: Invalid connection 108311
6/10/14 18:10:01,708 sessionlogoutd[9881]: sessionlogoutd Launched
6/10/14 18:10:01,728 sessionlogoutd[9881]: DEAD_PROCESS: 9663 console
6/10/14 18:10:01,731 loginwindow[9663]: ERROR | SLODErrorHandler | Connection to sessionlogoutd lost, exiting loginwindow
6/10/14 18:10:01,733 WindowServer[4420]: CGXRestartSessionWorkspace: session workspace exited for session 257 (on console)
6/10/14 18:10:01,733 WindowServer[4420]: Session 257 released (1 references)
6/10/14 18:10:01,733 WindowServer[4420]: Session 257 released (0 references)
6/10/14 18:10:01,734 WindowServer[4420]: loginwindow connection closed; closing server.
6/10/14 18:10:01,743 UserEventAgent[11]: Captive: [UserAgentDied:142] User Agent @port=137787 Died
6/10/14 18:10:01,747 imagent[9717]: Quit - notifying about shutdown
6/10/14 18:10:01,747 identityservicesd[9718]: Quit - notifying about shutdown
6/10/14 18:10:01,747 identityservicesd[9718]: Quit - shutting down daemon
6/10/14 18:10:01,749 imagent[9717]: Quit - shutting down daemon
6/10/14 18:10:01,756 airportd[66]: FIXME: IOUnserialize has detected a string that is not valid UTF-8, " �ԙ".
6/10/14 18:10:01,764 airportd[66]: FIXME: IOUnserialize has detected a string that is not valid UTF-8, " �ԙ".
6/10/14 18:10:01,774 airportd[66]: _doAutoJoin: Already associated to “Reunis_Mast_2”. Bailing on auto-join.
6/10/14 18:10:01,780 WindowServer[9882]: Server is starting up
6/10/14 18:10:01,805 WindowServer[9882]: Session 256 retained (2 references)
6/10/14 18:10:01,805 WindowServer[9882]: Session 256 released (1 references)
6/10/14 18:10:01,807 WindowServer[9882]: Session 256 retained (2 references)
6/10/14 18:10:01,808 WindowServer[9882]: init_page_flip: page flip mode is on
6/10/14 18:10:01,832 WindowServer[9882]: Found 30 modes for display 0x00000000 [30, 0]
6/10/14 18:10:01,881 WindowServer[9882]: Found 1 modes for display 0x00000000 [1, 0]
6/10/14 18:10:01,897 WindowServer[9882]: Found 1 modes for display 0x00000000 [1, 0]
6/10/14 18:10:01,915 WindowServer[9882]: Found 1 modes for display 0x00000000 [1, 0]
6/10/14 18:10:01,000 kernel[0]: IOHIDSystem::registerScreenGated: Screen 0 recycled from pid 4420
6/10/14 18:10:01,916 WindowServer[9882]: mux_initialize: Couldn't find any matches
6/10/14 18:10:01,918 WindowServer[9882]: Found 30 modes for display 0x00000000 [30, 0]
6/10/14 18:10:01,920 WindowServer[9882]: Found 1 modes for display 0x00000000 [1, 0]
6/10/14 18:10:01,921 WindowServer[9882]: Found 1 modes for display 0x00000000 [1, 0]
6/10/14 18:10:01,921 WindowServer[9882]: Found 1 modes for display 0x00000000 [1, 0]
6/10/14 18:10:01,923 WindowServer[9882]: WSMachineUsesNewStyleMirroring: false
6/10/14 18:10:01,923 WindowServer[9882]: Display 0x04280300: GL mask 0x1; bounds (0, 0)[1920 x 1080], 30 modes available
Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model a00c, S/N 0, Unit 0, Rotation 0
UUID 0x2bd9c1997fd0412ccbbf1db83d3812bb
6/10/14 18:10:01,923 WindowServer[9882]: Display 0x003f0040: GL mask 0x10; bounds (0, 0)[4096 x 2160], 2 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,924 WindowServer[9882]: Display 0x003f003f: GL mask 0x8; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,924 WindowServer[9882]: Display 0x003f003e: GL mask 0x4; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,924 WindowServer[9882]: Display 0x003f003d: GL mask 0x2; bounds (0, 0)[0 x 0], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,924 WindowServer[9882]: WSSetWindowTransform: Singular matrix
6/10/14 18:10:01,924 WindowServer[9882]: WSSetWindowTransform: Singular matrix
6/10/14 18:10:01,924 WindowServer[9882]: WSSetWindowTransform: Singular matrix
6/10/14 18:10:01,955 WindowServer[9882]: Display 0x04280300: GL mask 0x1; bounds (0, 0)[1920 x 1080], 30 modes available
Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model a00c, S/N 0, Unit 0, Rotation 0
UUID 0x2bd9c1997fd0412ccbbf1db83d3812bb
6/10/14 18:10:01,955 WindowServer[9882]: Display 0x003f0040: GL mask 0x10; bounds (2944, 0)[1 x 1], 2 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,955 WindowServer[9882]: Display 0x003f003f: GL mask 0x8; bounds (2945, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,955 WindowServer[9882]: Display 0x003f003e: GL mask 0x4; bounds (2946, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,955 WindowServer[9882]: Display 0x003f003d: GL mask 0x2; bounds (2947, 0)[1 x 1], 1 modes available
off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0
UUID 0xffffffffffffffffffffffffffffffff
6/10/14 18:10:01,955 WindowServer[9882]: CGXPerformInitialDisplayConfiguration
6/10/14 18:10:01,955 WindowServer[9882]:   Display 0x04280300: Unit 0; Vendor 0x610 Model 0xa00c S/N 0 Dimensions 18.70 x 10.51; online enabled built-in, Bounds (0,0)[1920 x 1080], Rotation 0, Resolution 1
6/10/14 18:10:01,955 WindowServer[9882]:   Display 0x003f0040: Unit 4; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2944,0)[1 x 1], Rotation 0, Resolution 1
6/10/14 18:10:01,955 WindowServer[9882]:   Display 0x003f003f: Unit 3; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2945,0)[1 x 1], Rotation 0, Resolution 1
6/10/14 18:10:01,955 WindowServer[9882]:   Display 0x003f003e: Unit 2; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2946,0)[1 x 1], Rotation 0, Resolution 1
6/10/14 18:10:01,955 WindowServer[9882]:   Display 0x003f003d: Unit 1; Vendor 0xffffffff Model 0xffffffff S/N -1 Dimensions 0.00 x 0.00; offline enabled, Bounds (2947,0)[1 x 1], Rotation 0, Resolution 1
6/10/14 18:10:01,958 WindowServer[9882]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001f, accelerator 0x000031cb, unit 0, caps QEX|MIPMAP, vram 512 MB
6/10/14 18:10:01,958 WindowServer[9882]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001f, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT
6/10/14 18:10:01,958 WindowServer[9882]: GLCompositor enabled for tile size [256 x 256]
6/10/14 18:10:01,958 WindowServer[9882]: CGXGLInitMipMap: mip map mode is on
6/10/14 18:10:02,029 sandboxd[103]: ([9691]) ubd(9691) deny file-read-data /Users/Hendrik/Library/Cookies/Cookies.binarycookies
6/10/14 18:10:03,926 WindowServer[9882]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.
6/10/14 18:10:03,948 WindowServer[9882]: Display 0x04280300: Unit 0; ColorProfile { 2, "iMac"}; TransferFormula (1.000000, 1.000000, 1.000000)
6/10/14 18:10:03,959 WindowServer[9882]: Display 0x04280300: Unit 0; ColorProfile { 2, "iMac"}; TransferFormula (1.000000, 1.000000, 1.000000)
6/10/14 18:10:04,972 WindowServer[9882]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04280300 device: 0x7fcbd14123c0 isBackBuffered: 1 numComp: 3 numDisp: 3
6/10/14 18:10:04,972 WindowServer[9882]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7fcbd14123c0) - enabling OpenGL
6/10/14 18:10:31,651 com.apple.usbmuxd[3179]: stopping.
6/10/14 18:10:31,678 com.apple.usbmuxd[9888]: usbmuxd-344 on Jul 29 2014 at 13:52:57, running 64 bit
6/10/14 18:11:01,968 mDNSResponder[40]: NameResolvesToName failed:(ipc/send) invalid destination port mp:7427
6/10/14 18:31:28,780 com.apple.backupd[9898]: Starting automatic backup
6/10/14 18:31:28,781 com.apple.backupd[9898]: Attempting to mount network destination URL: afp://admin@LaCie-d2._afpovertcp._tcp.local/imac_Timemachine
6/10/14 18:31:29,000 kernel[0]: ASP_TCP CheckReqQueueSize: increasing req queue from 32 to 128 entries. so 0xffffff8066d4ba08
6/10/14 18:31:30,704 com.apple.backupd[9898]: Mounted network destination at mount point: /Volumes/imac_Timemachine using URL: afp://admin@LaCie-d2._afpovertcp._tcp.local/imac_Timemachine
6/10/14 18:31:30,705 mds[39]: (Normal) Volume: volume:0x7fc409837000 ********** Bootstrapped Creating a default store:0 SpotLoc:(null) SpotVerLoc:(null) occlude:0 /Volumes/imac_Timemachine
6/10/14 18:32:16,569 com.apple.backupd[9898]: Recovery dialog not displayed. Deferring recovery decision.
6/10/14 18:32:16,570 com.apple.backupd[9898]: Backup canceled.
6/10/14 18:32:16,000 kernel[0]: AFP_VFS afpfs_unmount: /Volumes/imac_Timemachine, flags 0, pid 9902
6/10/14 18:32:16,000 kernel[0]: ASP_TCP Disconnect: triggering reconnect by bumping reconnTrigger from curr value 0 on so 0xffffff8066d4ba08
6/10/14 18:32:16,000 kernel[0]: ASP_TCP Detach: Reply queue not empty?
6/10/14 18:32:16,686 com.apple.backupd[9898]: Ejected Time Machine network volume.
6/10/14 18:49:18,145 UserEventAgent[11]: Captive: CNPluginHandler en1: Inactive
6/10/14 18:49:18,145 configd[17]: network changed: v4(en1-:192.168.1.3) DNS- Proxy-
6/10/14 18:49:18,149 netbiosd[8778]: network_reachability_changed : network is not reachable, netbiosd is shutting down
6/10/14 18:49:24,592 UserEventAgent[11]: Captive: [CNInfoNetworkActive:1655] en1: SSID 'Reunis_Mast_2' making interface primary (cache indicates network not captive)
6/10/14 18:49:24,592 configd[17]: network changed: DNS* Proxy
6/10/14 18:49:24,592 UserEventAgent[11]: Captive: CNPluginHandler en1: Evaluating
6/10/14 18:49:24,592 UserEventAgent[11]: Captive: en1: Not probing 'Reunis_Mast_2' (cache indicates not captive)
6/10/14 18:49:24,593 UserEventAgent[11]: Captive: CNPluginHandler en1: Authenticated
6/10/14 18:49:24,595 configd[17]: network changed: v4(en1!:192.168.1.3) DNS+ Proxy+ SMB
6/10/14 18:49:26,934 apsd[64]: Unrecognized leaf certificate
6/10/14 18:49:46,680 aosnotifyd[65]: CoreLocation: Got unhandled message kCLConnectionMessageShutdown from daemon
6/10/14 18:52:26,000 bootlog[0]: BOOT_TIME 1412614346 0

Please read this whole message before doing anything.
This procedure is a diagnostic test. It’s unlikely to solve your problem. Don’t be disappointed when you find that nothing has changed after you complete it.
The purpose of the test is to determine whether the problem is caused by third-party software that loads automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards, if applicable. Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start up and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login 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.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test.

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Hi cybertoof,
Welcome to Apple Support Communities.
It sounds like you're seeing a startup issue with your Mac, it's booting to a gray screen with an Apple logo. Try the suggestions in the article linked below, they will resolve most issues related to starting up your Mac.
Mac OS X: Gray screen appears during startup
http://support.apple.com/kb/TS2570
I hope this helps.
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I have the gray screen problem when it boots to the white apple and spinning wheel, but when I tried safe booting and doing the fsck thing I think I only made it worse, because it now starts, the safe mode progress bar comes on, (no matter if I press any keys or not) and after a minute shuts down again by itself. I also tried the command option, p, r thing and that did not work either, only brought me to the gray screen with the white apple, spinning wheel, and bar, and it promptly shut down. I am thinking more and more that I need the disk, but im not sure I have it. is it possible to order a new one online or is there another thing I can try? there is not an apple store nearby, and ereasing my data is not an option.
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The hard disk is damaged. Take the Mac to an Apple Store

Macbook Pro 10.6.8 won't shut down. Blue screen with spinning wheel.

it's an 15 inch macbook pro. since I bought this computer was working fine about last year. Somehow, start of this year, the problem begins. Everytime when i opened microsoft word 2011 on mac or Photoshop cs5, and quit the software as normaly. When i try to shut down the blue screen with spinning wheel apears. this spining wheel is endless. But funny thing is that after use other software such as games, web browser (safari) etc. and quit them. when i shut down there was not a problem. only word 2011 for mac and adobe photoshop cs5. Any solutions?

Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Console in the page that opens.
Step 1
Select "system.log" from the file list. Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Post the messages logged during the time something abnormal was happening. That time might be before or after the boot.
For example, if the problem is a slow startup taking three minutes, post the messages timestamped within three minutes after the boot time, not before. If the problem is a system crash or freeze, post the messages from before the boot time, when the system was about to crash or was failing to shut down. In either case, please include the BOOT_TIME message at the beginning or the end of the log extract.
Post the log text, please, not a screenshot. If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
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Step 2
Do the same with kernel.log.
Step 3
Still in Console, look under System Diagnostic Reports for crash or panic logs, and post the most recent one, if any. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if present (it may not be.) Please don’t post shutdownStall or hang logs — they're very long and not helpful.

Endless spinning wheel on shut down

If I boot up and do not initiate any software and then shut down, shut down occurs normally. If I initiate any software, I get a blue screen and the endless spinning wheel. I tried the repair disk and repair permissions from the startup disk, to no avail. This is something that began just recently, possibly with upgrading to 10.6.7 but I'm not sure. Safe boot makes no difference either. I am running on a 2.8 GHz, i7, quad core.
Thanks,
Jacob

Hi Jacob,
Just to do a quick rundown on what you have done so far in terms of troubleshooting:
Repair Permissions.
Verify the start up disk. Does the disk utility indicates if "Macintosh HD appears to be OK"?
Boot from installer disk and use the" Repair Disk" option.
Now a few questions:
When you mean "initiate any software", do you mean like initiating software update or app such as Safari or iPhoto?
When was the last time you installed something on your computer?
I think you have done everything in regards to avoid a total system reinstall. But before we go with the steps of reinstalling the OS, I will suggest one more step, since you mentioned that the problem might have arised after installing 10.6.7.:
Reinstall OSX 10.6.7. Update via Combo updater:Get it from here: http://support.apple.com/kb/DL1361
Report back after installing the combo update.
About combo updates as a trouble shooting steps (from Cnet):
Combo
Apple's Combo updater includes all the files necessary to bring a major release of OS X from any previous version to the one represented by the update. For example, if you have the OS X 10.6.7 Combo updater then you can use it to update any Mac from any version of OS X Snow Leopard to OS X 10.6.7.
While Software Update will also provide you with this option, the Combo updater, like the Delta updater, is more universal and can be applied to any Mac system, regardless of its hardware or software configuration. Additionally, it can be reapplied to a Mac that has already been updated. Because of this, a Combo updater is frequently used when troubleshooting odd problems in OS X since it can be used to essentially replace a number of system files with fresh ones, without requiring a full reinstallation of OS X.
Good Luck!

Blue screen and spinning wheel at startup

I had permission problems (locked time machine drive) so I did a full time machine restore.
Did the restart after the restore.
Machine won't reboot.
I get 'bong', apple logo on grey screen as per normal.
Then blue screen and spinning wheel for approx 7 seconds
Then blue screen and black pointer for approx 2 seconds
The blue screen spinning wheel / black pointer repeats.
Also can't start up from Snow Leopard DVD.
I get exactly the same scenario.
I have held down the power key at got the tone.
Still won't start.
HELP!!!!!
It's an Imac (white one) 1.8Gig Dual with 1.5 gig of ram.
Running Snow leopard.
I can see my disc over the ethernet; it is still there as it was sharing with my other machine.
Not sure if this helps me at all?
Cheers

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/.
If you cannot boot from your installer DVD on the iMac, then you can try connecting to your other computer via Firewire cable and use Target Disk Mode to boot and install from the other computer - Transferring files between two computers using FireWire

Mac mini shut down on its own, will not restart, grey screen, spinning wheel. Unplugged everything, will still not restart. Did safe boot, will not restart after safe boot, only grey screen with spinning wheel.

Mac mini shut down on its own. Could not restart, chime, grey screen and spinning wheel. Unplugged everything but monitor, still only chime, grey screen and spinning wheel. Started in safe boot, shut Down, will not restart.
This happened a couple of months ago, unplugged everything and it restarted, now that won't work.

Hi BDAqua,
I just did the repair as you suggested. T ran the disc repair, and twice it cam back, the volume macintosh seems ti be okay, I also ran the verify and permissions repair, both came back okay.
I was actually hoping that they would find something, so they could repair. I shut the computer down, and restated with out holding a key, and I started up great. I'm baffled. I have moved 20 GB to an external hard drive, as I only had 10% open space.
I have Tech Tool 6, would you recommend to run a repair check on that, or just leave well enough alone.
I agree with you on the new Mac's, I have problems with no disc for back up, until they realize their mistake I will stay with Snow a Leopard. This is the first problem I have experienced, so I can't complain. Their last programs are not as perfected as under Steve, prior to his handling over the reins, hope this is not going to be the future we can expect from Apple.
I will wait to here back as to your suggestion regarding the Tech Tool check
Thanks for all your help.
Gratefully,
Cheri

Help need my mac pro for school..it has Grey screen..spinning wheel...repaid disk ok...repair disk permission all repaired but one warning...

Help need my mac pro for school..it has Grey screen..spinning wheel...
I think I have mountain lion OS X....I have done I think almost every suggestion I've seen in discussion boards.
Boot in recovery repaired disk...ok...repair disk permission...all repaired but one warning...I've tried to reinstall lion (without losing data) and it Got all the way to one minute to be done and then the time change back two hours and kept doing this all night long. I haven't done a back up due to no external for time machine.
I hope someone can please help me I've been going crazy for a week now trying to figure this out. I use my computer for school and I'm currently very behind from in my school work thank you
Also I've checked my available space 424.91 free of 750 gigs....disk is verified

Welcome to the Apple Support Communities
Try holding the Shift key while your Mac is starting to start into safe mode. Then, after starting in safe mode, open Finder, select Go menu (on the menu bar) > Go to Folder, and type /Library/StartupItems. Then, empty this folder and restart the Mac.
If your Mac starts after doing this, it was a problem with a third-party app that starts automatically when you turn on the computer. It won't start automatically anymore after doing that

Macbook Pro 10.8 won't shut down. Gray screen with spinning wheel.

Previous it happened on 10.6.8 snow leppord. I thought it might be the RAM problem, so i went ahead and purchased a 16GB RAM. Now I got the RAM up running, i upgraded the computer to 10.8 mountain lion. I thought the problem should be gone by now. But somehow, it happened all over again, everytime when i use microsoft office 2011. I even quit every single app fron the Active Monitor (include Active Monitor), and wait for about 5min before shutdown, the gray screen with spinning wheel appeared again. I repair the disk from recovery HD, according to that, there is no problem anymore. But, once again it happened after i used Microsoft office 2011. Is there anyways i could fix it? I suppose uninstall it will make it work, but it's vital.

Previous it happened on 10.6.8 snow leppord. I thought it might be the RAM problem, so i went ahead and purchased a 16GB RAM. Now I got the RAM up running, i upgraded the computer to 10.8 mountain lion. I thought the problem should be gone by now. But somehow, it happened all over again, everytime when i use microsoft office 2011. I even quit every single app fron the Active Monitor (include Active Monitor), and wait for about 5min before shutdown, the gray screen with spinning wheel appeared again. I repair the disk from recovery HD, according to that, there is no problem anymore. But, once again it happened after i used Microsoft office 2011. Is there anyways i could fix it? I suppose uninstall it will make it work, but it's vital.

My MacBook Pro won't turn on, only a white screen with spinning circle, I've only had it a few weeks! Any ideas what is going on?

My MacBook Pro won't turn on, only a white screen with spinning circle, I've only had it a few weeks! Any ideas what is going on?

Mac OS X: Gray screen appears during startup

MAC OSX 10.3.6 having Boot Problems(Gray Screen with Spinning wheel all the Time) ,How to restore all the files without Mac Startpup Disc,still is not possible i want to download full CD from Apple Site, Is It Possible to Download!

Hi Frnds,Small Favour for me,...
MAC OSX 10.3.6 having Boot Problem(Gray Screen with Spinning wheel all the Time) ,How to restore all the files without Mac Startpup Disc,still is not possible i want to download full CD from Apple Site, Is It Possible to Download!, Windows 7 is working perfectly , can i restore any files in MAC OSX 10.3.6 through Windows 7, or i need the MAC OSX 10.3.6 Bootable Files i need to enter the MAC OSX....

Hi Frnds,Small Favour for me,...
MAC OSX 10.3.6 having Boot Problem(Gray Screen with Spinning wheel all the Time) ,How to restore all the files without Mac Startpup Disc,still is not possible i want to download full CD from Apple Site, Is It Possible to Download!, Windows 7 is working perfectly , can i restore any files in MAC OSX 10.3.6 through Windows 7, or i need the MAC OSX 10.3.6 Bootable Files i need to enter the MAC OSX....

Hangs on grey screen with spinning wheel at start up

Power Mac g4 running tiger hangs on grey screen with spinning wheel (the wheel keeps going tho!) tried resetting the PRAM, PMU, changed the little battery thing on the main board, and starting from tiger dvd and os 9 dvd, dvds just keep ejecting. also tried starting in verbose and safe modes, still the same problem.
I can however access the hd through a network.
any ideas
Thanks

The only thing I know is to buy one. Not much help here. I have a collection of OS disks I bought to go along with all the Macs I've had and still have.
You said already that you had reset the PMU, but did you do that according to:
http://support.apple.com/kb/HT1939
If not, then this may help. The PMU seems to be a miracle part of the OS. You could then plug the HD back in and a miracle will happen. I've read several threads where people kept doing this and all of sudden everything was cured. I think the last one I read, the person recommended holding in the button for at least 15 seconds and then releasing it. I just go by the Apple tech sheets.

HT1455 imac wont start up and grey screen with spinning wheel appears

imac wont start up and grey screen with spinning wheel appears

See this Apple note on steps to take.

2012 MB Pro 13" came with Lion - nearly new, second owner. Stopped responding yesterday in the middle of work. Forced quit, booted up single user, ran fsck -fy, mount -us /, reboot. Stuck on grey apple screen with spinning wheel forever now. Please help

2012 MB Pro 13" came with Lion - nearly new, second owner. Stopped responding yesterday in the middle of work. Forced quit; reboot stuck on grey apple screen. Booted as single user; ran fsck -fy; mount -us /; reboot. Still stuck on grey apple screen with spinning wheel.
Any advice please?
Thanks

Run through this list of fixes, your solution is there
Step by Step to fix your Mac

Logout: white screen + endless spinning wheel

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