How turn off pop-up bubble on shut down options etc

I've got a new XP-Pro.

How do I turn off that @#$% pop-up bubble that appears on common things like the Restart - Stand By - Turn Off options when you want to reboot. I'm using the Windows Classic and Classic Start Menu.

I've checked Control Panel > Accessibility Options, Display as well as Folder Options. I know it's somewhere.

 

Thanks Pete, for supplying the link and the proper wording.

Here is another direct way - it works fine:

http://support.microsoft.com/kb/307729