Q. Mac shifts the IP address each time it is turned off.
A. Lock it to the Router. This is configured on the Router.

Q. Are iChat messages stored on the computer?
A. Try Chax to extend iChat to store logs.

Q. Cannot maintain the off state for the Spotlight menu keyboard shortcut after a restart. Also affect keyboard modifiers in Keyboard Pane in System Preferences
A. Try trashing the System Preferences preferences file (plist).

Q. If you are behind a proxy firewall, iTunes 8 will not get onto the Internet. Also Front Row has never worked through a proxy firewall either.
A. ??

Q. Occasionally my icons on the desktop freezes. Finder is fine, have trashed Finder preferences and updated OS and not cured. Running network drives, but they don't freeze.
A. Check Activity Monitor to identify what is hanging.

Q. The names of my documents get abbreviated to a few letters, occasionally. It clears quickly usually, but it a nuisance.
A. May be a driver problem.

Q. When I try to sync using MobileMe, when I travel, the times get mixed up. It works fine in Mail, as does contacts, but calendar gets mixed up.
A. Sounds like a preferences issue.

Q. There was an article in SoundByte saying how easy it is to extend an Airport network. But can't now get Airport Extreme to work with a Airport Express.

Q. Got a hard drive directory error, can't be fixed with Disk Warrior etc.
A. ProSoft Disk Rescue?

Q. Anyone looking at video on their computer?