I installed a hard drive and upon installing drivers for my nvidia gtx 460, it just gave me a black screen once I got to the login screen. Went back in to safe mode and got older drivers, that didn't work either. I have tried 4 versions of the older drivers and it all goes exactly the same. It's getting a little frustrating. Clean install of windows 7 Home Premium 64. Any ideas as to how to fix this? Or do I just need to get a new motherboard/videocard? Also I have a dual monitor setup and the second monitor doesn't get a signal.