There's also a 'Hardware Acceleration' within Windows, for any euphemistic 'mouse problems'...
Control Panel, Display, Settings, Advanced, Troubleshoot...
D'uh, what is 'Write Combining' ??
IIRC, I had to back-off Windows' HA and cancel FP's own to make either Matrox or BFG(Invidia) cards work with FP...