Tiger 'Restart or 'shutdown' fails

Question

Tiger fails to restart or shutdown: From "Apple" menu or any keyboard entry ( Control-option-cmmd-eject, control-cmmd-eject ). Have to hold power button to shut down.
Have gone through repair process suggested by another thread:
DVD install startup to 'repair disk' with Disc Utility ( "No Repair Necessary"), Cocktail and OnyX used fully, repaired Disc Permissions, cache ( user and system) cleaning. During the startup off the Mac OS Install Disk for disc repair, when quitting , the 'restart' option did work.
Previous articles other sites suggested removing Norton or VersionCue CS2 , don't have them to start with.
dual core G5   Mac OS X (10.4.3)  
dual core G5   Mac OS X (10.4.3)  

Answer 1

hound dawg,
It's possible that a connected peripheral is causing this. Disconnect all peripherals except Apple keyboard and mouse and test. If it is a peripheral you'll have to isolate which one.
Also, create a new account, name it "test" and see how your shutdown works in that User acct? (That will tell if your problem is systemwide or limited to your User acct.) This account is just for test, do nothing further with it.
Open System Preferences >> Accounts >> "+" make it an admin account.
If this works go no further and let us know.
If not, you may be able to repair this with the 10.4.3 Stand Alone Combo Update. This is a full install, as opposed to an incremental "delta" update so it should overwrite any files that are damaged or missing. It does not matter if you have applied it before. It has worked well for many.
Repair permissions before and after update:
Navigate to Applications/Utilities/Disk Utility (Double Click to Launch) > Choose your HD in the sidebar > First Aid Tab > Click on "Repair Disk Permissions". Also Verify Disk before update.
-mj
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