Dunno for sure if I am posting in the right forum, but here I go... I had aGeForce 2 mx 400 video card, but I replaced it with a hand me down GeForce 4 ti 4200. I am running XP home edition. When I plugged in the new card and updated to the current driver on the nvidia site, I rebooted my computer, but when XP loads, I get a bad picture, just a bunch of colored squares all shaking and chaotic. So I power off, restart and choose last known good configuration. XP loads, but none of my games will run and in device manager it shows my video card with a ! and it just says VGA controller like it's generic. I tried to update it, it does the same thing. I even tried updating with an older driver, no luck. I keep getting a bad picture. Anyone familiar with this problem?