F keys stop working, can't quit, restart, control-option-escape doesn't wor

Weirdness. I tried to lower the volume on iTunes and the F key didn't work. Then I tried to change the brightness. Nothing. I then tried to restart using the menu choice under the Apple. Nada. Tried to quit using the menu, nothing. Tried control-option-escape. The window wouldn't come up. After doing this some more I'd get at least the square under the Apple to be highlighted after I asked it to either restart or quit but nothing would happen. I could quit apps but not start them. Their icons would bounce on the Dock but they wouldn't start up. Finally I hit the power button and it shut down. After restart, nothing was in the trash.
I had iTunes, Eudora and the latest Camino open when this happened.
Please see this other thread for perhaps more insight on what is going on with this computer recently.
http://discussions.apple.com/thread.jspa?threadID=2288089&tstart=0
Thanks for any help.
Cheers,
John L

Thanks.
All seems well now.
Why did I need to do this? Did the Geek Squad set things up incorrectly or was it my bringing some Library files over from an old backup? I exchanged or added some files in both my User and the root Library folders but only files I had a clue might be useful. Things like files from the Application support folder for apps I knew I wanted to set up with my old settings. I avoided replacing any file/folder that I thought might be better to leave alone. I don't remember all the files/folders I brought over but I could dig up some info if you'd like. I did let some apps be installed from their discs or downloaded new ones.
Here's the Applejack log:
**************** Wed Jan 13 18:28:03 EST 2010: NEW LOG STARTED ****************
******************************************************************** * AppleJack 1.5, Revision: 1.123 * * Copyright (c) 2002-8 Kristofer Widholm, The Apotek * Wed Jan 13 18:28:03 EST 2010. Gathering information... Running in automatic mode, deep clean on, with manual exit - User ID: 0, NAME: root || - OS Version: 10.4.11 - Looking for virtual memory directory in /etc/rc - Virtual memory directory appears to be /private/var/vm. - Local root filesystem is journaled AppleJack will repair disks in 10 seconds. Disk repair Success! Either your disk had no errors, or it was repaired successfully. Done with disk repairs -0- AppleJack will repair permissions in 10 seconds. Permissions repair Let's mount the startup file system for write access...
Done.
Checking for /tmp directory:
/tmp directory exists.
Done.
Configuring minimal Tiger services...
Done. -0-
Started verify/repair permissions on disk disk0s3 Powerbook 2 G4:OSX
Determining correct file permissions.
Permissions differ on ./Applications/DVD Player.app/Contents/Resources/English.lproj/AboutBox.nib/objects.xib, should be -rw-rw-r-- , they are -rwxrwxr-x
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Owner and group corrected on ./private/var/log/secure.log
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Group differs on ./usr/bin/fetchmail, should be 0, group is 6
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The privileges have been verified or repaired on the selected volume
Verify/repair finished permissions on disk disk0s3 Powerbook 2 G4:OSX
Permissions have been repaired. -0-
AppleJack will cleanup cache files in 10 seconds.
Cache file cleanup
Removing system cache files:
/System/Library/Caches/com.apple.ATS.System.fcache
/System/Library/Caches/com.apple.ATSServer_System.fodb
/System/Library/Caches/com.apple.Components2.SystemCache.Components
/System/Library/Caches/com.apple.Components2.SystemCache.QuickTimeComponents
/System/Library/Caches/com.apple.IntlDataCache
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/System/Library/Caches/com.apple.bootxsignature
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/System/Library/Caches/com.apple.kernelcaches
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/Library/Caches/Desktop Pictures/501.59400001
/Library/Caches/Desktop Pictures
/Library/Caches/Google/SoftwareUpdates/manifest.xml
/Library/Caches/Google/SoftwareUpdates
/Library/Caches/Google
/Library/Caches/com.apple.ATS/501/annex.db
/Library/Caches/com.apple.ATS/501/annex_aux
/Library/Caches/com.apple.ATS/501/filetoken.db
/Library/Caches/com.apple.ATS/501/fonts.db
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/private/var/db/volinfo.database
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/System/Library/Extensions.kextcache
/System/Library/Extensions.mkext
Done removing system cache files.
Done with cache file clean up task.
AppleJack will validate preference files in 10 seconds.
Validating preference files
Root file system already mounted. Continue.
Checking mach init preference files (/etc/mach_init.d)):
Done. -0-
Checking root preference files (/var/root/Library/Preferences)):
Done. -0-
Checking system preference files (/Library/Preferences)):
Done. -0-
AppleJack will clean up virtual memory in 10 seconds.
Virtual memory cleanup
Removing swap files:
/private/var/vm/swapfile0
Done.
Removing VM working sets:
Done.
Exiting the script.
Restarting john-lippincotts-powerbook58.local
********************* GOODBYE FROM APPLEJACK *********************

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