"Bought a new GT 630 along with a full format and fresh install. Install went perfect, so now I install the latest nvidia driver from their site and those install perfect. After driver install I re-boot and the system hangs and re boots at the splash screen every single time with the drivers installed (I have tried 6 different versions off the site and also the ones that came with the card) Now the funny thing is if I go into safe mode and delete all the drivers the machine boots perfect and lists the GT 630 as "standard VGA graphics adapter" in device manager, the 630 doesn't even show up. " --- I am also having the same problem ..can you please inform how you solved it?? Was the problem in Graphics Card or Mother Board???