Mac OS X Leopard....Blue screen

Hi, I've just tried to install Mac OS x Leopard. All I get is a blue screen on booting up. HELP !!! What do I do?? If I try to reinstall holding down the controll key nothing happpens. It appears to be totally locked. Please please advise...thanks

Hey guys,
I've got the exact same problem of getting the "blue screen" indefinitely after upgrading my Tiger OS to Leopard OS.
Could someone please advise how do I attempt to "reinstall" if I can't even do it as my mac is now non-responsive to my keyboard and mouse buttons?

Similar Messages

Leopard "Blue screen of death" - total system crash!

So my new mac crashed. Again.
Recently I've experienced that my mac freezes when I start to do some heavy work, like video-editing or Photoshop. A re-install solved the problem for around two weeks, before the same thing happend again yesterday:
During a update of Final Cut Studio, my Mac suddenly freezes, and I had to do a forced quit. After this reboot my mac got to a blue screen (after the loading-apple-screen), and nothing more.
After around 14 reboots, I decided to do a archive and re-install. This re-install took *14 HOURS*, and now it stops at the loading Apple-logo.
Tryed to verify the disc with the Disk Utility software, showed up fine. Tryed to repair the permissions - came up some errors (apparently some missing files(?), before it said that it was fixed. Finally I tryed an extended hardware test - showed up nothing wrong.
Then I got the idea that I maybe could make a 2nd partition of the harddrive, preserving the exsisting data, and install Leopard on that new one. But when I try to install Leopard on this, I get an estimated *21 hours* of time to install.
I've also tryed to boot from a Linux-bootable USB-stick I use with my Acer-PC, but it refuse to boot from that.
So I'm pretty much stuck right now. When I try to open the machine in Single User Mode, it tells me a bunch of errors, before the following lines is repeated:
disk0s2: I/O error.
0 [Level 3] [ReadUID 0] [Facility com.apple.system.fs] [ErrType I0] [I0Type Read] [PBlkNum 373453728] [LBlkNum 1356] [FSLogMsgID 591622195] [FSogMsgOrder First]
0 [Level 3] [ReadUID 0] [Facility com.apple.system.fs] [DevNode root_device] [MountPt > [Path (usr/lib/libSystem.B.dylib] [FSLogMsgID 5916221951] [FSLogMsgOrder Last]
Could it be the harddrive, the RAM, or something completly else?
Any help is much appreciated!

Run DU and verify/repair the HD and also permissions.
Run Activity Monitor and check your Page outs which are related to RAM usage. If it is high, it indicates you are using your HD in lieu of RAM for whatever reason. It's not good and at the minimum slows things down.
You can also run a RAM check, such as Rember
http://www.macfixit.com/article.php?story=20050524014158525
Also check that your computer is not overheating.

PowerBook 12" June 2005 won't load Leopard-blue screen of void

After many years using 10.4.11 on my PowerBook G4 12" from June 2005 - I wish to install Leopard (which I've had several months or more now on my newer MacBook May 2006 - intel) - but after the DVD loads Leopard 10.5 - it restarts only to have a blue screen appear for an hour... then I tried a restart, nothing - I mean same blue screen.
I am in the process of reinstalling from the DVD. But I expect the same result...
I did a repair permissions before installing; and repair disk (but it was OK).
Help- what to do here? I really don't want to do a full install as I have lots of programs and such-- I have a full backup via SuperDuper! so can re-install the 10.4.11 if I need to, but prefer not to do that!
Thanks for any assistance.
Steve on 21 Dec 2009

How much RAM is installed in this PB? Are you using a retail Leopard DVD or one with a gray label or from another Mac?
Since you have a backup I would erase the hard drive before installing by selecting the Erase and install option in the installer (select the target volume, click on the Options button, select the Erase and Install option.) When you configure the initial admin account in the Setup Assistant be sure to use the same username you now use. This will avoid permissions problems when you restore your data from the backed up Home folder. To avoid other potential problems reinstall your third-party software. Do not try to copy them from the backup.

Power Mac stuck at light blue screen

I've searched numerous forums and my problem doesn't seem to have a solution (that I could find). I have a 2.0 GHz early 2005 Power Mac G5 (7,3) that won't get past the light blue screen at start-up. I've tried everything - reset the PRAM, Apple Hardware Check (on overnight loops, everything came back OK), fsck (all OK), repaired my HD and permissions on it, and then erased the drive using Target Disk Mode and another Mac, and attempted to reinstall OSX from the install disk that came with it (with OSX Tiger). I've tried switching out the RAM with no luck. The only thing I haven't tried is a new video card (the installed one is an ATI Radeon 9600).
Here's what it does: powers on with the usual chime, then moves on to the white Apple screen, the wheel spins, then it moves on to a darker blue screen, then it finally moves on to a lighter blue screen with an arrow, and it just stays there. It will boot into safe mode (pressing shift), but I can't even upgrade to Leopard in safe mode, much less figure out what's wrong. Help!

bildungsroman wrote:
Actually, this post gave me the first (temporary) solution I have yet to run across: https://discussions.apple.com/thread/3263472?tstart=0
It seems like the culprit is my video card. I'm going to order a new one and report back...
Sounds like the right thing to do. I've had similar problems in the past with a problematic video card, because of course, Safe Boot does not use anything more than the basic capabilities of the card and usually doesn't load the driver kext, which should probably be ATIRadeon9700, at least for Tiger.
For grins, you can do a verbose boot (hold down cmd-V combination at power up) and after the gray screen with Apple embossed logo, you will go to essentially a Unix console screen, which should at some point report loading the driver, which will probably be the hang point.

My mac will restart & show Blue Screen when plugged ipod classic into my mac

When i plugged ipod into my mac and i put to the Disk Mode my ipod , the computer will restart & don't let me to restore my ipod !!!! Please help and give me a solution !!!
My ipod & mac info :
iPod Classic 160gb (2009)
Mac Book Pro (2011)
iTunes 11.1.3

If your computer is a 2011, you can stop the blue screen by turning off graphic card switching. Under apple, system preferences, energy, uncheck box. Temporary fix. Your logic board may need to be replaced if you are under warranty or have apple care otherwise $1000.00. May be software or firmware problem but apple has provided no info. Replacing logic board has corrected problem for some users and not others. Everything I've mentioned only applies to 2011 MBPs.

Solved Mac Mini (late 2010) Blue Screen Hang issue

I posted several questions about blue screen hang and was able to fix my problem, after LOTS of work and searching in various forums.
I had been unable to use my computer for over a month; it was simply hanging at the blue screen, and that seemed to happen when my Finder.app had crashed, hiding all my document icons on my desktop, etc. I also had been having issues with Time Capsule and my backup Iomega disk, which is touchy.
When I tried a fix my icons had returned but I had been unable to use computer after rebooting, and I had tried every sort of key combo including trying to boot from the original install CD, etc., but nothing worked. I could not even reboot using original 10.6 software CDs, and was only able to log in Single User Mode and had tried many fixes with Terminal, and finally, this worked, two of the fixes I used are listed below.
It seems, in part, that resetting certain "privileges" worked.
This tip first tip is for Mac OSX 10.3 to 10.3.9 and even though I am on 10.6.8, I ran it, and it worked. THis is the original link location: http://support.apple.com/kb/TS1411
   1. Start up the computer in Single-User Mode.
   2. Type: in Terminal the command
     mount -uw /
   3. Press Return.
   4. Type (in Terminal, note space before mv)
      mv /Library/Preferences/com.apple.loginwindow.plist preferences2.old
     Note space between ".plist" and "preferences".
   5. Press Return.
   6. Type:
     mv /Library/Preferences/com.apple.windowserver.plist preferences3.old
   7. Press Return.
   8. Type: reboot
   9. Press Return.
Then I followed up with this tip to "Reset certain privileges"
1. Start up the computer in Single-User Mode.
   2. Check the volume with fsck.
   3. Type: mount -uw /
   4. Press Return.
   5. Type: chmod 1775 /
   6. Press Return.
   7. Type: reboot
   8. Press Return.
When I rebooted, yayyyy! I was able to log back onto my computer, however, all icons were missing, again, so I typed this fix
/System/Library/CoreServices/Finder.app/Contents/MacOS/Finder & disown
I am not sure what 1775 means, but this fix got my computer back up, saving me at least a $150 bill at the Genius Bar.
When I typed those commands into Terminal, this is what returned, and seems to be some QXPscrpiting issue, though I have no idea what that is. and again, some Dropbox issues. If anyone has any idea what all those issues are regarding ScriptingCodes please let me know.
My-Mac-mini:~ username$ /System/Library/CoreServices/Finder.app/Contents/MacOSFinder &
[1] 892
Rangdrols-Mac-mini:~ username$ -bash: /System/Library/CoreServices/Finder.app/Contents/MacOSFinder: No such file or directory
[1]+ Exit 127                /System/Library/CoreServices/Finder.app/Contents/MacOSFinder
My-Mac-mini:~ username$
Rangdrols-Mac-mini:~ username$ /System/Library/CoreServices/Finder.app/Contents/MacOS/Finder & disown
[1] 894
My-Mac-mini:~ username$ 2012-08-25 19:37:10.594 Finder[894:903] Error loading /Library/ScriptingAdditions/QXPScriptingAdditions.osax/Contents/MacOS/QXPScript ingAdditions: dlopen(/Library/ScriptingAdditions/QXPScriptingAdditions.osax/Contents/MacOS/QX PScriptingAdditions, 262): no suitable image found. Did find:
    /Library/ScriptingAdditions/QXPScriptingAdditions.osax/Contents/MacOS/QXPScript ingAdditions: no matching architecture in universal wrapper
Finder: OpenScripting.framework - scripting addition "/Library/ScriptingAdditions/QXPScriptingAdditions.osax" declares no loadable handlers.
Dropbox: Entered INJECT_pthread_entry
Dropbox: Installing event loop timer
Dropbox: proc: 0x11d171e53
Dropbox: upp: 0x11d171e53
Dropbox: InstallEventLoopTimer: 0x101341dd8
Dropbox: GetMainEventLoop: 0x101341c41
Dropbox: timer installed!
Dropbox: Loading /Library/DropboxHelperTools/Dropbox_u501/DropboxBundle.bundle/Contents/MacOS/Dr opboxBundle
Dropbox: dlopen returned: 0x11bb12090
module initializer in main thread?: 1

Great work, thanks.
As far as those errors, ypu have some missing OS components it seems.
And, before the mount -uw you really should've done this...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214

Mac mini dual display - blue screen flashes frequently

I recently purchased a mac mini i7 model, with fusion drive.
I have upgraded the RAM to 16GB.
I have also purchased 2 monitors, both are LG 22EA63V LED.
I connected one monitor direct HDMI to HDMI.
The other monitor is connected from Thunderbolt to HDMI.
Everything worked amazingly well for the first few weeks. Now, not so much....
I frequently have the screen freeze and flash blue, and then resume as normal dual display mode.
Other times the screen will flash blue and then come back as a single display. In this case the Thunderbolt to HDMI display appears as primary display, while the HDMI display loses connection.
If I unplug the HDMI display completely, the blue screen flashing does not happen at all.
So, what could be causing this problem, and how do i fix it?

Hi Matt,
See if there's some setting on the HDMI monitor for Input Source, or things like Auto-tune.

HELP PLEASE!! Boot problems with Snow Leopard (Blue Screen Loop)

Hi guys!
My MacBook (the model before the current one) wont boot up. It started stuttering and acting strange and then froze so I did a force restart. It then loaded all the way up until a blue screen when the mouse appears and can be moved. This flickers off after a few moments (the screen dims) and then comes back. The process repeats as if in some infinite loop.
The main problem is that I've lost my snow leopard disc so I'm pretty limited to what I can do until I can borrow / buy another one and I need to get my laptop back up right away for work.
I've tried booting in safe mode, no joy
I then tried to repair the drive in fsck, which repaired something. I did it again and it said all was ok but then booting stuck at the same place.
Finally I read on another forum that removing /Library/Preferences/com.apple.security.plist fixed login loop issues. I attempted this in single user mode but it said the file didnt exist?
Can anyone help me out here? I'm pretty stressed out as all my work stuff is on there for my new job...
Thanks!!

I had this same problem -- machine would boot, but loop at two blue screens before the login window. I sshed into the machine and checked /private/var/log/system.log and /var/log/secure.log which showed a unexpected character in /etc/authorization. Basically, the authorization file was corrupted (most likely by bad RAM.) The solution was to replace this file with one copied from another machine. I didn't match models, but did match OS when copying the file (i don't know if this matters at all), and as soon as the "cp" command was entered, the login window popped up. <-- totes awesome. The machine has been reliable since (all of 15 minutes)

Sudden Log-out in Snow Leopard (+ Blue Screen)

Similar posts here show that other people are being spontaneously logged out of 10.6, faced with a blue screen, and then the login window. In my case it is caused by connecting my bluetooth (BT) headphones, as the log below states.
Short of never using my BT headphones or any other peripherals, has anyone found a solution to this terrible bug? Comments like "[Many applications shut down here]" are added to show that the log is just repeating with different applications.
[Console Log Excerpt]
9/4/09 6:11:35 AM BluetoothAudioAgent[2390] Error loading /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: dlopen(/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHD Audio, 262): no suitable image found. Did find:
/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: no matching architecture in universal wrapper
9/4/09 6:11:35 AM BluetoothAudioAgent[2390] Cannot find function pointer NewPlugIn for factory C5A4CE5B-0BB8-11D8-9D75-0003939615B6 in CFBundle/CFPlugIn 0x100130990 </Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin> (bundle, not loaded)
9/4/09 6:11:44 AM GrowlHelperApp[5408] CGSShutdownServerConnections: Detaching application from window server
9/4/09 6:11:44 AM Library Books[5402] CGSShutdownServerConnections: .
Detaching application from window server
[Many applications shut down here]
Dock[5365] MIG: server died: CGSReleaseShmem : Cannot release shared memory
9/4/09 6:11:44 AM Dock[5365] CGSDisplayServerShutdown: Detaching display subsystem from window server
9/4/09 6:11:44 AM DashboardClient[7864] MIG: server died: CGSReleaseShmem : Cannot release shared memory
[Message Repeated with other applications]
DashboardClient[7869] kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
[Message Repeated with other applications]
9/4/09 6:11:44 AM com.apple.Dock.agent[5365] Fri Sep 4 06:11:44 [MYNAME]-MacBook-Pro-2.local DashboardClient[7865] <Warning>: CGSDisplayServerShutdown: Detaching display subsystem from window server
[Many applications shut down here]
9/4/09 6:11:45 AM Dock[5365] kCGErrorInvalidConnection: CGSSetBackgroundEventMaskAndShape: Invalid connection
[Many applications shut down here]
9/4/09 6:11:47 AM com.apple.ReportCrash.Root[2398] 2009-09-04 06:11:47.468 ReportCrash[2398:1407] Saved crash report for loginwindow[5344] version ??? (???) to /Library/Logs/DiagnosticReports/loginwindow2009-09-04-061147localhost.crash
9/4/09 6:11:49 AM com.apple.SecurityServer[25] Session 0x34b085 created
9/4/09 6:11:49 AM com.apple.SecurityServer[25] Session 0x34b085 attributes 0x30
9/4/09 6:11:51 AM loginwindow[2406] Login Window Started Security Agent
9/4/09 6:11:52 AM WindowServer[2408] kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
9/4/09 6:11:52 AM com.apple.WindowServer[2408] Fri Sep 4 06:11:52 [MYNAME]-MacBook-Pro-2.local WindowServer[2408] <Error>: kCGErrorFailure: Set a breakpoint @ CGErrorBreakpoint() to catch errors as they are logged.
9/4/09 6:11:55 AM com.apple.SecurityServer[25] Session 0x234edb dead
9/4/09 6:11:55 AM com.apple.SecurityServer[25] Killing auth hosts
9/4/09 6:11:55 AM com.apple.SecurityServer[25] Session 0x234edb destroyed
9/4/09 6:11:56 AM com.apple.ReportCrash.Root[2398] 2009-09-04 06:11:56.175 ReportCrash[2398:2b03] Saved crash report for DashboardClient[7867] version ??? (???) to /Library/Logs/DiagnosticReports/DashboardClient2009-09-04-061156localhost.crash
9/4/09 6:11:56 AM SecurityAgent[2414] Showing Login Window
9/4/09 6:11:57 AM com.apple.notifyd[11] EV_DELETE failed for file watcher 295
9/4/09 6:11:57 AM com.apple.notifyd[11] EV_DELETE failed for file watcher 292
[Message Repeated]
9/4/09 6:11:58 AM com.apple.loginwindow[2406] 2009-09-04 06:11:58.519 loginwindow[2406:107] Error loading /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: dlopen(/Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHD Audio, 262): no suitable image found. Did find:
9/4/09 6:11:58 AM com.apple.loginwindow[2406] /Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin/Contents/MacOS/DVCPROHDAudio: no matching architecture in universal wrapper
9/4/09 6:11:58 AM com.apple.loginwindow[2406] 2009-09-04 06:11:58.521 loginwindow[2406:107] Cannot find function pointer NewPlugIn for factory C5A4CE5B-0BB8-11D8-9D75-0003939615B6 in CFBundle/CFPlugIn 0x100151fc0 </Library/Audio/Plug-Ins/HAL/DVCPROHDAudio.plugin> (bundle, not loaded)
9/4/09 6:11:59 AM SecurityAgent[2414] User info context values set for [MYNAME]
9/4/09 6:11:59 AM authorizationhost[2413] Failed to authenticate user <[MYNAME]> (tDirStatus: -14090).
9/4/09 6:12:03 AM SecurityAgent[2414] User info context values set for [MYNAME]
9/4/09 6:12:03 AM SecurityAgent[2414] Login Window Showing Progress
[Login window showed up]
[End Console Log Excerpt]
Message was edited by: chacha22

I had the same problem while trying to save data in eBook Studio which is a PPC app requiring rosetta. It has been working fine and I have used it to create 4 other books on the same day a few weeks ago. Today, however, upon saving a book, I got logged out of 10.6 - losing my data and killing all my open applications.
Here is my crash log:
Process: WindowServer [121]
Path: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/WindowServer
Identifier: WindowServer
Version: ??? (???)
Code Type: X86-64 (Native)
Parent Process: launchd [1]
Date/Time: 2009-09-05 15:39:07.795 -0600
OS Version: Mac OS X 10.6 (10A432)
Report Version: 6
Exception Type: EXCBADACCESS (SIGSEGV)
Exception Codes: KERNINVALIDADDRESS at 0x00000001b9200c26
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 ...ple.CoreServices.CarbonCore 0x00007fff811d52a6 UCKeyTranslate + 464
1 com.apple.CoreGraphics 0x00007fff8242ad79 CGSUniCodeForKeyAndFlags + 161
2 com.apple.CoreGraphics 0x00007fff824a088b CGXCheckForHotKey + 3184
3 com.apple.CoreGraphics 0x00007fff823100b9 sPostContinuation + 1808
4 com.apple.CoreGraphics 0x00007fff8230f13a CGXFilterEvent + 73
5 com.apple.CoreGraphics 0x00007fff8230f5b3 CGXProcessHIDEvent + 164
6 com.apple.CoreGraphics 0x00007fff8230f39c sHIDContinuation + 528
7 com.apple.CoreGraphics 0x00007fff8230f13a CGXFilterEvent + 73
8 com.apple.CoreGraphics 0x00007fff8230eee5 CGXGetNextEvent + 133
9 com.apple.CoreGraphics 0x00007fff8230ee48 CGXRunOneEventPass + 36
10 com.apple.CoreGraphics 0x00007fff82311758 eventNotificationHandler + 80
11 com.apple.CoreGraphics 0x00007fff823116c1 CGXPostPortData + 175
12 com.apple.CoreGraphics 0x00007fff823114cb CGXRunOneServerPass + 451
13 com.apple.CoreGraphics 0x00007fff8230e7e6 CGXRunOneServicesPass + 357
14 com.apple.CoreGraphics 0x00007fff823173ea CGXServerLoop + 139
15 com.apple.CoreGraphics 0x00007fff822e2bd6 CGXGetRootAdminCredentials + 0
16 WindowServer 0x0000000100000f29 main + 9
17 WindowServer 0x0000000100000f18 start + 52
Thread 1: Dispatch queue: com.apple.libdispatch-manager
0 libSystem.B.dylib 0x00007fff88178c7e kevent + 10
1 libSystem.B.dylib 0x00007fff8817ab55 dispatch_mgrinvoke + 154
2 libSystem.B.dylib 0x00007fff8817a824 dispatch_queueinvoke + 185
3 libSystem.B.dylib 0x00007fff8817a34e dispatch_workerthread2 + 244
4 libSystem.B.dylib 0x00007fff88179c80 pthreadwqthread + 353
5 libSystem.B.dylib 0x00007fff88179b1d start_wqthread + 13
Thread 2:
0 libSystem.B.dylib 0x00007fff8815fefa machmsgtrap + 10
1 libSystem.B.dylib 0x00007fff8816056d mach_msg + 59
2 com.apple.CoreFoundation 0x00007fff8736bce2 __CFRunLoopRun + 2002
3 com.apple.CoreFoundation 0x00007fff8736b03f CFRunLoopRunSpecific + 575
4 com.apple.CoreFoundation 0x00007fff8736adc6 CFRunLoopRun + 70
5 com.apple.CoreGraphics 0x00007fff822f4531 eventThread + 441
6 libSystem.B.dylib 0x00007fff8819906e pthreadstart + 331
7 libSystem.B.dylib 0x00007fff88198f21 thread_start + 13
Thread 3:
0 libSystem.B.dylib 0x00007fff8815fefa machmsgtrap + 10
1 libSystem.B.dylib 0x00007fff8816056d mach_msg + 59
2 com.apple.QuartzCore 0x00007fff82a3f296 CA::Render::Server::server_thread(void*) + 177
3 com.apple.QuartzCore 0x00007fff82a3f1d6 thread_fun + 34
4 libSystem.B.dylib 0x00007fff8819906e pthreadstart + 331
5 libSystem.B.dylib 0x00007fff88198f21 thread_start + 13
Thread 4:
0 libSystem.B.dylib 0x00007fff8819aace _semwaitsignal + 10
1 libSystem.B.dylib 0x00007fff8819e8c1 pthread_condwait + 1286
2 com.apple.CoreGraphics 0x00007fff823cbb7f layerblit_work_queuethread + 1023
3 com.apple.CoreGraphics 0x00007fff823cbcbc layerblit_work_queueserver + 156
4 libSystem.B.dylib 0x00007fff8819906e pthreadstart + 331
5 libSystem.B.dylib 0x00007fff88198f21 thread_start + 13
Thread 0 crashed with X86 Thread State (64-bit):
rax: 0x0000000100a60c26 rbx: 0x0000000000000001 rcx: 0x0000000100a60d6c rdx: 0x00000000b87a0000
rdi: 0x0000000000000008 rsi: 0x00007fff70270260 rbp: 0x00007fff5fbf6800 rsp: 0x00007fff5fbf67b0
r8: 0x000000000000002e r9: 0x0000000100a60cf4 r10: 0x0000000000000000 r11: 0x00007fff5fbf685c
r12: 0x0000000100a60c00 r13: 0x0000000000000000 r14: 0x0000000000000002 r15: 0x0000000000000013
rip: 0x00007fff811d52a6 rfl: 0x0000000000010207 cr2: 0x00000001b9200c26
Binary Images:
0x100000000 - 0x100000fff WindowServer ??? (???) <5607962C-ED2B-5F52-8E3B-042562061DED> /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphic s.framework/Resources/WindowServer
0x100583000 - 0x100599ff7 com.apple.GeForceGA 1.6.0 (6.0.0) <D47CBB9E-3596-BC0B-650E-180DBC85F446> /System/Library/Extensions/GeForceGA.plugin/Contents/MacOS/GeForceGA
0x123000000 - 0x12318bff7 GLEngine ??? (???) <3E2DEFB1-190A-FBAD-C48F-E90B45EED8A4> /System/Library/Frameworks/OpenGL.framework/Resources/GLEngine.bundle/GLEngine
0x1231bb000 - 0x123578fe7 libclh.dylib ??? (???) <1D7BEF47-D684-E6C0-7343-52B58440A3DD> /System/Library/Extensions/GeForce8xxxGLDriver.bundle/Contents/MacOS/libclh.dyl ib
0x200000000 - 0x200466ff7 com.apple.GeForce8xxxGLDriver 1.6.0 (6.0.0) <DB083478-44E2-AFDF-9AC8-DFF3B98E5545> /System/Library/Extensions/GeForce8xxxGLDriver.bundle/Contents/MacOS/GeForce8xx xGLDriver
0x7fff5fc00000 - 0x7fff5fc3bdef dyld 132.1 (???) <B633F790-4DDB-53CD-7ACF-2A3682BCEA9F> /usr/lib/dyld
0x7fff80003000 - 0x7fff80008fff libGIF.dylib ??? (???) <0C112067-95FE-B9BC-C70C-64A46A277F34> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libGIF.dylib
0x7fff80009000 - 0x7fff8000fff7 IOSurface ??? (???) <8E0EE904-59D1-9AA0-CE55-B1777F4BAEC1> /System/Library/Frameworks/IOSurface.framework/Versions/A/IOSurface
0x7fff80243000 - 0x7fff8028dff7 com.apple.Metadata 10.6.0 (507.1) <AA0DF8E0-9B5B-2377-9B20-884919E28994> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Metadat a.framework/Versions/A/Metadata
0x7fff802d3000 - 0x7fff803eafef libxml2.2.dylib ??? (???) <6D4C196C-B061-CBCD-AAFD-A21736A8425C> /usr/lib/libxml2.2.dylib
0x7fff803eb000 - 0x7fff803ebff7 com.apple.ApplicationServices 38 (38) <10A0B9E9-4988-03D4-FC56-DDE231A02C63> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Application Services
0x7fff803fa000 - 0x7fff8041eff7 com.apple.CoreVideo 1.6.0 (43.0) <FF5F0EEF-56BE-24DD-C8FA-CB41F126E6A8> /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo
0x7fff8041f000 - 0x7fff80420ff7 com.apple.TrustEvaluationAgent 1.0 (1) <4B6B7853-EDAC-08B7-3324-CA9A3802FAE2> /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/Tru stEvaluationAgent
0x7fff805fd000 - 0x7fff806d7ff7 com.apple.vImage 4.0 (4.0) <354F34BF-B221-A3C9-2CA7-9BE5E14AD5AD> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.fr amework/Versions/A/vImage
0x7fff811a3000 - 0x7fff814d5fef com.apple.CoreServices.CarbonCore 859.1 (859.1) <5712C4C1-B18B-88EE-221F-DA04A8EDA029> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CarbonC ore.framework/Versions/A/CarbonCore
0x7fff814d6000 - 0x7fff814daff7 libmathCommon.A.dylib ??? (???) <95718673-FEEE-B6ED-B127-BCDBDB60D4E5> /usr/lib/system/libmathCommon.A.dylib
0x7fff814db000 - 0x7fff8158afef edu.mit.Kerberos 6.5.8 (6.5.8) <A9C16B72-A1F8-3DDE-7772-E7635774CA6E> /System/Library/Frameworks/Kerberos.framework/Versions/A/Kerberos
0x7fff815c9000 - 0x7fff81625fff libGLU.dylib ??? (???) <AA2D37B3-8B7C-6772-F8BA-7364284C55FE> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib
0x7fff81628000 - 0x7fff8163dfff com.apple.LangAnalysis 1.6.5 (1.6.5) <D4956302-5A2D-2AFD-C143-6287F1313196> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ LangAnalysis.framework/Versions/A/LangAnalysis
0x7fff8163e000 - 0x7fff8163eff7 com.apple.Accelerate 1.5 (Accelerate 1.5) <E517A811-E0E6-89D0-F397-66122C7A25A4> /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate
0x7fff8163f000 - 0x7fff81655fef libbsm.0.dylib ??? (???) <42D3023A-A1F7-4121-6417-FCC6B51B3E90> /usr/lib/libbsm.0.dylib
0x7fff81843000 - 0x7fff81ac7fff com.apple.security 6.0 (36910) <F7431448-BC2E-835D-E7A2-E47E0A5CB984> /System/Library/Frameworks/Security.framework/Versions/A/Security
0x7fff81f89000 - 0x7fff8220afe7 com.apple.Foundation 6.6 (751) <CCE98C5C-DFEA-6C80-A014-A5985437072E> /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation
0x7fff82213000 - 0x7fff82227ff7 com.apple.speech.synthesis.framework 3.10.35 (3.10.35) <621B7415-A0B9-07A7-F313-36BEEDD7B132> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ SpeechSynthesis.framework/Versions/A/SpeechSynthesis
0x7fff82229000 - 0x7fff8291b5d7 com.apple.CoreGraphics 1.535.5 (???) <6599C41F-2D50-5E04-44E4-44FA90E022B5> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/CoreGraphics
0x7fff829ed000 - 0x7fff82d81ff7 com.apple.QuartzCore 1.6.0 (226.0) <66E14771-C5F0-1415-0B7B-C45EE00C51A1> /System/Library/Frameworks/QuartzCore.framework/Versions/A/QuartzCore
0x7fff83071000 - 0x7fff83176fe7 libGLProgrammability.dylib ??? (???) <EDEC71CB-5F5B-7F55-47F4-19E953E3BE61> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgramma bility.dylib
0x7fff83296000 - 0x7fff833a5ff7 libcrypto.0.9.8.dylib ??? (???) <A2DA70D0-02AE-89FA-1CDA-B3CA986CAE6D> /usr/lib/libcrypto.0.9.8.dylib
0x7fff83475000 - 0x7fff834b0fef com.apple.AE 496 (496) <6AFD62E0-DD92-4F04-A73A-90224D80593D> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/AE.fram ework/Versions/A/AE
0x7fff834b9000 - 0x7fff83523fe7 libvMisc.dylib ??? (???) <524DC30F-6A54-CCED-56D9-F57033B06E99> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvMisc.dylib
0x7fff83f62000 - 0x7fff83f80ff7 libPng.dylib ??? (???) <6A0E35B8-2E33-7C64-2B53-6F47F628DE7A> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libPng.dylib
0x7fff84371000 - 0x7fff84380fff com.apple.NetFS 3.2 (3.2) <61E3D8BE-A529-20BF-1A11-026EC774820D> /System/Library/Frameworks/NetFS.framework/Versions/A/NetFS
0x7fff843bb000 - 0x7fff843fcff7 com.apple.SystemConfiguration 1.10 (1.10) <E3FF1FC8-C760-2047-F954-0D283DD0F714> /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfi guration
0x7fff843fd000 - 0x7fff8443dfef com.apple.QD 3.31 (???) <0FA2713A-99BD-A96B-56AF-7DB0AB4927AD> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ QD.framework/Versions/A/QD
0x7fff844de000 - 0x7fff84ce8fe7 libBLAS.dylib ??? (???) <FC941ECB-71D0-FAE3-DCBF-C5A619E594B8> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libBLAS.dylib
0x7fff84d1f000 - 0x7fff84dd8fff libsqlite3.dylib ??? (???) <5A15E12A-AE8F-1A36-BBC7-564E7D7AD0FB> /usr/lib/libsqlite3.dylib
0x7fff8527e000 - 0x7fff85318fe7 com.apple.ApplicationServices.ATS 4.0 (???) <76009EB5-037B-8A08-5AB5-18DA59559509> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/ATS
0x7fff853c4000 - 0x7fff853d2ff7 libkxld.dylib ??? (???) <823B6BE6-E952-3B3C-3633-8F4D6C4606A8> /usr/lib/system/libkxld.dylib
0x7fff85514000 - 0x7fff855a4fff com.apple.SearchKit 1.3.0 (1.3.0) <4175DC31-1506-228A-08FD-C704AC9DF642> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/SearchK it.framework/Versions/A/SearchKit
0x7fff855b1000 - 0x7fff8566cff7 libFontParser.dylib ??? (???) <8926E1B0-6D1E-502A-5028-1DCC57F6D6FA> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ATS.framework/Versions/A/Resources/libFontParser.dylib
0x7fff856e2000 - 0x7fff85731ff7 libTIFF.dylib ??? (???) <E11A75A8-223C-8B5E-7F62-821F9ADE8821> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libTIFF.dylib
0x7fff85732000 - 0x7fff85732ff7 com.apple.CoreServices 44 (44) <210A4C56-BECB-E3E4-B6EE-7EC53E02265D> /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices
0x7fff85733000 - 0x7fff85733ff7 com.apple.Accelerate.vecLib 3.5 (vecLib 3.5) <BA861575-B0DE-50F5-A799-BDF188A3D4EF> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/vecLib
0x7fff8580e000 - 0x7fff85c51fef libLAPACK.dylib ??? (???) <0CC61C98-FF51-67B3-F3D8-C5E430C201A9> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libLAPACK.dylib
0x7fff85c52000 - 0x7fff85c58ff7 com.apple.DiskArbitration 2.3 (2.3) <857F6E43-1EF4-7D53-351B-10DE0A8F992A> /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration
0x7fff85c59000 - 0x7fff85c6afef libz.1.dylib ??? (???) <3A7A4C48-A4C8-A78A-8B87-C0DDF6601AC8> /usr/lib/libz.1.dylib
0x7fff85c6b000 - 0x7fff85cb8ff7 libauto.dylib ??? (???) <8658DB85-C611-1212-44E5-5B2539018FA0> /usr/lib/libauto.dylib
0x7fff8607e000 - 0x7fff860dbfef com.apple.framework.IOKit 2.0 (???) <65AA6170-12E3-BFB5-F982-E0C433610A1F> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit
0x7fff8631f000 - 0x7fff86370fe7 com.apple.HIServices 1.8.0 (???) <113EEB8A-8EC6-9F86-EF46-4BA5C2CBF77C> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ HIServices.framework/Versions/A/HIServices
0x7fff863fb000 - 0x7fff864b7ff7 com.apple.CoreServices.OSServices 352 (352) <CD933BBD-B260-552F-E64E-291D6ED3091A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/OSServi ces.framework/Versions/A/OSServices
0x7fff864c5000 - 0x7fff864e6ff7 com.apple.opencl 11 (11) <A53E07FB-AD2F-9F3E-EC00-7DCC7DDE2F90> /System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
0x7fff86bae000 - 0x7fff86bd6fff com.apple.DictionaryServices 1.1 (1.1) <D57BA55A-4CC5-5C17-8077-AEEA27A01C7A> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/Diction aryServices.framework/Versions/A/DictionaryServices
0x7fff86bd7000 - 0x7fff86c02ff7 libxslt.1.dylib ??? (???) <87A0B228-B24A-C426-C3FB-B40D7258DD49> /usr/lib/libxslt.1.dylib
0x7fff86c03000 - 0x7fff86ccffff com.apple.CFNetwork 454.4 (454.4) <E7721AD8-3177-8749-60F7-5EF323E6492B> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/CFNetwo rk.framework/Versions/A/CFNetwork
0x7fff86cd0000 - 0x7fff86cf6fe7 libJPEG.dylib ??? (???) <52ACD177-F101-BEF5-E7CC-9131F8372D0A> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libJPEG.dylib
0x7fff86cfa000 - 0x7fff86d40fe7 libvDSP.dylib ??? (???) <2DAA1591-8AE8-B411-7D01-68DE99C63CEE> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.fr amework/Versions/A/libvDSP.dylib
0x7fff86e19000 - 0x7fff86e4afff libGLImage.dylib ??? (???) <4F318A3E-20C1-D846-2B36-62451A3241F7> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dyl ib
0x7fff86e7d000 - 0x7fff8703afff libicucore.A.dylib ??? (???) <224721C0-EC21-94D0-6484-66C603C34CBE> /usr/lib/libicucore.A.dylib
0x7fff87088000 - 0x7fff870a9fff libresolv.9.dylib ??? (???) <01C7C750-7F6A-89B3-C586-5C50A839019E> /usr/lib/libresolv.9.dylib
0x7fff871dc000 - 0x7fff87292fe7 libobjc.A.dylib ??? (???) <261D97A3-225B-8A00-56AA-F9F27973063F> /usr/lib/libobjc.A.dylib
0x7fff87293000 - 0x7fff87310fe7 com.apple.CoreText 3.0.0 (???) <51175014-9F0C-7E96-FB6F-3DC5E446B92E> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreText.framework/Versions/A/CoreText
0x7fff87320000 - 0x7fff87493fef com.apple.CoreFoundation 6.6 (550) <04EC0CC2-6CE4-4EE0-03B9-6C5109398CB1> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x7fff87494000 - 0x7fff87511fef libstdc++.6.dylib ??? (???) <35ECA411-2C08-FD7D-11B1-1B7A04921A5C> /usr/lib/libstdc++.6.dylib
0x7fff87612000 - 0x7fff87625fff libGL.dylib ??? (???) <D452ADC0-04B1-E24F-03E6-717E58E1D659> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib
0x7fff877f0000 - 0x7fff878a4fef com.apple.ColorSync 4.6.0 (4.6.0) <080BEDDE-E7A4-F88D-928B-7501574A157B> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ColorSync.framework/Versions/A/ColorSync
0x7fff87c6e000 - 0x7fff87c7dfef com.apple.opengl 1.6.3 (1.6.3) <6318A188-B43D-E82F-C157-2E76331227BD> /System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL
0x7fff87c7e000 - 0x7fff87c83fff libGFXShared.dylib ??? (???) <C386DB22-A0AA-D826-ACBA-25E82B480D05> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGFXShared.d ylib
0x7fff87e94000 - 0x7fff87e97ff7 libCoreVMClient.dylib ??? (???) <3A41933A-5174-7516-37E0-8E06365BF3DA> /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libCoreVMClien t.dylib
0x7fff87e98000 - 0x7fff87ea5fff libCSync.A.dylib ??? (???) <D97C8D7E-2CA3-9495-0C41-004CE47BC5DD> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCSync.A.dylib
0x7fff87ea6000 - 0x7fff87edbff7 libcups.2.dylib ??? (???) <1FE99C26-B845-F508-815A-5B2CF2CA5337> /usr/lib/libcups.2.dylib
0x7fff87edc000 - 0x7fff87ee2fff libCGXCoreImage.A.dylib ??? (???) <D113DB65-BB37-5499-8825-E6AE8AB1F8B8> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ CoreGraphics.framework/Versions/A/Resources/libCGXCoreImage.A.dylib
0x7fff8805d000 - 0x7fff880fdfff com.apple.LaunchServices 360.3 (360.3) <02FFE657-CC7A-5266-F06E-8732E28F70A9> /System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchS ervices.framework/Versions/A/LaunchServices
0x7fff8815f000 - 0x7fff8831efe7 libSystem.B.dylib ??? (???) <1AABDC4B-CBAE-F40C-405C-DAE785959F57> /usr/lib/libSystem.B.dylib
0x7fff8835b000 - 0x7fff883dffff com.apple.print.framework.PrintCore 6.0 (312) <1F747E69-924D-8C5B-F318-C4828CC6E85D> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ PrintCore.framework/Versions/A/PrintCore
0x7fff8874a000 - 0x7fff88904fef com.apple.ImageIO.framework 3.0.0 (3.0.0) <D5594E10-F805-F816-10E9-F95753BE18CC> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/ImageIO
0x7fff88ab3000 - 0x7fff88ab5fff libRadiance.dylib ??? (???) <77F285E0-5D5E-A0B0-A89E-9332D6AB2867> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ ImageIO.framework/Versions/A/Resources/libRadiance.dylib
0x7fffffe00000 - 0x7fffffe01fff libSystem.B.dylib ??? (???) <1AABDC4B-CBAE-F40C-405C-DAE785959F57> /usr/lib/libSystem.B.dylib

Os x snow leopard blue screen

hi i have installed os x snow leopard and then the latest update 10.6.8 and now the screen goes blue and i have to safe boot it to start it everytime and then there is no sound

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

Slow Booting Leopard (Blue Screen)

I was trying to tweak my boot time of leopard. It shows a blue screen for a long time before showing desktop. I checked log and found a few problems and deleted and unloaded various services (I removed machinit_peruser.d and mach_init.d folders and inloaded com.apple.dnbobserver.plist. Finally I think I got the problem in the log but I am not sure of the solution to tweak it.
this is the log which seems culprit to me.
+08/05/08 4:31:41 PM com.apple.launchctl.System[2] com.openssh.sshd: Already loaded+
+08/05/08 4:31:52 PM org.ntp.ntpd[25] Error : nodename nor servname provided, or not known+
+08/05/08 4:32:14 PM com.apple.launchd[1] (com.apple.UserEventAgent-LoginWindow[78]) Exited:Terminated+
So majority of blue screen time (almost 23 seconds) is spend here. Any idea what is is this UserEventAgent thing or org.ntp.ntpd stuff and any suggestions to shut them off.
I am sure many users have the same problem. If someone could find out why is this happening, I am sure it is resolved issue.

More Updates:
I figured out org.ntp.ntpd is related to time server thing. So disabling auto time updates, i narrowed down to the following log
+08/05/08 4:59:31 PM com.apple.launchctl.System[2] com.openssh.sshd: Already loaded+
+08/05/08 5:00:10 PM com.apple.launchd[1] (com.apple.UserEventAgent-LoginWindow[78]) Exited: Terminated+
+08/05/08 5:00:13 PM Dock[95] _DESCRegisterDockExtraClient failed 268435459+
+08/05/08 5:00:15 PM [0x0-0xf00f].com.apple.iTunesHelper[107] USBMuxListenerCreate: No such file or directory+
So I guess I am pretty sure, blue screen has something to do with com.apple.UserEventAgent-LoginWindow. Can anyone tell me what it is and can we safely unload it from launch agents and how?

Power Mac goes to the blue screen and no where

I had a Power Mac G4 Dual 1, processor. Upgraded to 10.5 and after I cleaned up some files and was ready to reboot system and when I brought the system backup it went to blue screen. Now I can not do anything else on the system. I want to restart to a clean install if I can.

Start with http://support.apple.com/kb/TS1545 If that doesn't solve the problem, restore your previous Tiger bootable backup/clone.

Why does my mac start to a blue screen

Why does my mac go straight to a blue screen on start up?

Start into Safe Mode. http://support.apple.com/kb/HT1564
http://support.apple.com/kb/PH4373

New Mac Software update causes blue screen

Hello, I need some help...
I Updated my Macbook Pro with the reqular Mac software update (includes quicktime, itunes and a couple others) I was given the option to "shut down" or "restart"...
I clicked "shut down".
My computer then proceeded not to turn off but simply turn to a blue screen...
After some time I turned off my machine and restarted it...
It took a little longer time to start up as it usually does after a software update...
But after going through the main white screen with the apple, then moving through to the next screen that has the loading bar. that loading bar window comes up for a split second and then disappears leaving a blue screen with the cursor and then does nothing more...
I am stuck with a blue screen and a curser...
I have already tried to start up in safemode...
Any help would be much appreciated

Very astute question, for Tiger on Intel you must use the exact install disk for that Model, Gray in color for one thing.
One thing to try other than a Safe Boot...
Tough without the Install disc, but some things to try...
Does it boot to Single User Mode, CMD+s keys at bootup, if so try...
/sbin/fsck -fy
Repeat until it shows no errors fixed.
(Space between fsck AND -fy important).
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214
Tough without the Tiger Disk problems, but try fsck...
To use fsck, you must run it from the command line. Unlike using your mouse to open an application to do something, you'll need to type a text command at the prompt (#) to tell fsck what to do. The Terminal application (/Applications/Utilities) and single-user mode are two examples of command-line interfaces in which you can type such commands. To use fsck:
1. Start up your computer in single-user mode to reach the command line. Hold CMD+s keys down at bootup. Note: If necessary, perform a forced restart as described in the Emergency Troubleshooting Handbook that came with your computer. On desktop computers, you can do this by pressing the reset/interrupt button (if there is one) or holding down the power button for several seconds. On portable computers, simultaneously press the Command-Control-power keys. If your portable computer doesn't restart with this method, you may need to reset the Power Manager.
2. At the command-line prompt, type /sbin/fsck -fy
(SPACE between fsck AND -fy important)
3. Press Return. fsck will go through five "phases" and then return information about your disk's use and fragmentation. Once it finishes, it'll display this message if no issue is found: 
The volume (nameofvolume) appears to be OK  If fsck found issues and has altered, repaired, or fixed anything, it will display this message: *** FILE SYSTEM WAS MODIFIED ***   Important: If this message appears, repeat the fsck command you typed in step 2 until fsck tells you that your volume appears to be OK (first-pass repairs may uncover additional issues, so this is a normal thing to do).
4. When fsck reports that your volume is OK, type reboot at the prompt and then press Return.
http://docs.info.apple.com/article.html?artnum=106214

G5 Power Mac (ppc) boots to blue screen only

Hi, I realize that this is an old machine (10 years, at least) but until a few days ago it was working fine. I use it only for the FCP Suite, which will not run on my new Intel-Based Imac.
Anyway, I was able to boot up from the CD and run both the Disk utility and the Hardware Diagnostic Test. It passed the Hardware test without problems and then the disk utility found a bunch of errors, all of which is fixed (I have run it several times and it now comes up at "ok" everytime.
Still, when I go to boot it up it takes forever and goes through the gray screen, then the blue screen, and does not go past that.
I am stuck. Any ideas about the next steps? Should I use the Firewire Target Disk Mode?
There is another internal hard drive (which also passed all the tests) and I am wondering if I should try to install the system onto that and then try to boot from that. Any ideas about that? And, if I were able to boot from that disk, any ideas whether or not I would be able to then see the primary hard drive to copy off the project I was in the middle of when it went down?
I know I have a lot of questions, but any insight would be greatly appreciated.
Thanks,
Debbie

Hi BDAqua,
Many thanks for your thoughtful reply. I have done as you said—actually, I tried it right after I read your post—and the wheel is still spinning on the blue screen, which can't be good! It may be doing something, as previously it would go to the blue screen and eventually lose the spinning wheel, but still...
So, I had also done a reset of the PRAM and, I think, the SMU. What's next, do you think? What do you think of the idea of installing a system on the second hard drive...too risky? And is there anything I should be vacuuming, or looking at inside the whale? I saw some others had recommended that for other reasons...
Again, many thanks,
Debbie

Why does my mac keep getting a blue screen?

Almost everytime I close Netflix, and sometimes when I close certain tabs while on the internet, my screen turns blue and the only way I can get out of the blue screen is to hold the power button to restart. Its been happening for a while now, but it has been coming increasingly more and more frequent. Pleaseeeee somebody help.

Safe Boot by restarting your computer while holding down the "shift" key. Safe booting disables all nonessential processes, often times allowing you to start up when you would otherwise crash.
As of OS X 10.5.6 Safe Boot deletes the dynamic loader shared cache location in the /var/db/dyld directory. A corrupt cache here can cause the blue screen crash. Once you restart normally, the cache will be recreated. This should take care of the issue.
http://support.apple.com/kb/HT1564
http://support.apple.com/kb/HT1455

Mac OS X Leopard....Blue screen

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