Post all of your hardware, your operating system, what mouse, and how you have it plugged in. If USB, is it mobo native or you using a USB card....
that'll let us help ya, something screwing with the keyboard is strange....
Athlon XP3000+ Barton, WD JB 80 gig HD
ASUS A7n8X DEL, 1 gig Corsair TwinX XMS CL2 DDR, Win XP PRO
ASUS Radeon 9800XT/TVD 256 MEG,
Lite-On 18 DVD burner,
Everybody should carry a 230 grain ashcan thrower, more peeps would be nice!