If this is happening when you first start the program, you could try using one of the compatability modes.

I don't have an XP machine to hand right now, but IIRC this is how you do it (look it up in Windows Help to be sure).

Find the .EXE file and right click on it, and select properties.
One of the tabs (Advanced ?) will have the option to set a compatability mode. Choose Windows 98 and click OK.