Hello my hard drive recently burnt out; so i stripped my external hard drive and installed vista64 bit back on to it. after all the fun of installing I get to have more fun re-installing all the drivers. Though each time i install the newest version of graphics card driver from the AMD or Visiontek website when i restart my system as soon as it comes into the log in screen my card dies and screen goes blank. I know i am using the 64 bit driver. Its weird because when i first put the computer together there were no problems but now nothing seems to work. please help.