my geforce 7600gs agp8x 256mb ddr2 was working perfectly one yr ago after i got a new harddrive i format it and took the old one out. everythng was perfect until i installed the vga cd the whole com just blank out while in the middle of inastallation!my motherboard is compatible for a 8x vga but maybe it is the ddr2 promblem but it work perfectly the day before i insatled the new HD!i still could go to save mode and delete the vga program so i could go back to the normal windows mode!now i m usin the old geforce mx400 64mb and its freakinnn laglyyyyyy! anyone can help me on tis! oh ya i tested my old HD also but still gives me the same problem!
try going into safe mode and uninstalling the video drivers. then go to nvidia's website and download the latest drives for your card. install them and reboot back to normal.