All of a sudden my PC restarts when it gets to the Win XP Startup logo. I have Nvidia Geforce 7300 SE. Only when disabling the graphic card am I able to into xp. Tried uninstall and then re-install drivers but before the setup can complete the PC restarts. Did a format of hard drive and on a new install on Win XP the PC restart in the middle of drivers setup. Tried old and newest driver, same problem. As the PC is turned on there are whitish vertical lines across the whole screen but as xp screen comes up it looks fine. Tried a different monitor same problem. PLEASE HELP