Thanks, Devil - Gawd, they sure don't want to make it easy for you, do they? I have no idea whether or not I'm using the Registry Editor incorrectly, and now wonder if it's worth the risk. Why can't they just give us a menu option to disable? Anyway, I appreciate your info, which will save me combing through my menus for easy answers. Shoulda known...

Does anyone have any experience of the following (taken from their instruction page)?

"To Disable The Notification Area Balloon Tips
Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.
1.        Click Start, click Run, type regedit, and then press ENTER.
2.        Navigate to the following subkey:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
3.        Right-click the right pane, create a new DWORD value, and then name it EnableBalloonTips.
4.        Double-click this new entry, and then give it a hexadecimal value of 0.
5.        Quit Registry Editor. Log off Windows, and then log back on.
These steps disable all Notification Area balloon tips for this user. There is no way to disable balloon tips for specific programs only."