PXP: Control Panel > Mouse > Motion pane/tab under Cursor Speed and Acceleration. Maclean: I'd agree with you, but as I have their trackball (same drivers) to reduce wrist ache, I do need a few of their parameters. But I agree their installers are pretty pathetic - unloading unwanted "give-aways" is bad enough, but being expected to hand edit the .ini files after install for the trackball is beyond the pale!