Unknown driver problem

related to:- http://forums.majorgeeks.com/showthread.php?t=50476

after i updated the mouse driver and rebooted a few times, the problem came back, so i rolled back the drivers and still same problem.

however, i uninstalled all my drivers except my mouse and keyboard and graphics and the "keyboard and mouse lag" had gone,

after updating all the other drivers via DriverMAGIC Pro and windows updates, the "keyboard and mouse lag" came back.

i think the new drivers are causing problems, ive tried to rollback the drivers for the keyboard and mouse but the computer simply refuses and stays with the new drivers

is there a way to completly remove the mouse/keyboard drivers safely ?
and maybe uinstall the drivers from the windows xp disk?

or install keyboard and mouse drivers from xp cd?

anyone got any better ideas?