Hello btcomm

That is an unusual problem with the taskbar.
The only similar problem I have seen was caused by having the "Language Bar" enabled, but that applied to a vertical taskbar.

The Taskbar Repair Tool fixes many problems. You could give it a shot

Click on "Lock size and position of the taskbar".

http://www.kellys-korner-xp.com/taskbarplus!.htm

Elaine