Sounds like it could be a problem with how the mouse drivers use a hardware cursor on the card instead of using software, there's possbly something you can hack in the system.ini file or registry to force it to use a software cursor, that's all I know though, don't know the exact value or place. I think if you knock the video slider down one notch in system properties performance it does this. That only applies to 2d SVGA features, so shouldn't affect your gaming, you probably won't notice the diff in 2d either.
Road Warrior