Display Adapter Gone!

[dos_attack_ph]

hi..

i had a problem with my modem cause of a corrupted driver. after trying all possible solutions(reinstall driver, get updated driver etc.)..i was able to solve it by simply "repairing" xp. on the repair process, i encountered a popup window looking for the file viaagp.sys. since i dunno where to look for it i decided to cancel it and proceed with the repair. it all went smoothly..the modem issue was resolved after the repair but now the display adapter was gone in the device manager. and i cant even load any driver to it since xp doesn't recognize/detect it. tried in the hidden devices but nothing i find. tried reading all the solutions by way of googling but still i cant find an answer since most answers i found was they just reformatted their drives. is there any way that i can solve this? thanks in advance!

display adapter: nvidia geforce4 mx400 se 64mb

mobo: ECS L7VTA2 (VIA chipset)

OS: winxp pro sp2