I have an issue that I'm running into that I'm not sure how to resolve. When I boot up my pc, it goes through to the windows splash screen just fine. However, when it's time to go to the login screen the monitor goes black. The pc is on and so I switched the monitor to a different pc to double check to make sure it's not the monitor and it seems that the monitor is fine. Then I wondered if it's something with my built in video card. So I went ahead and switch out the HD to a another similar pc. When I booted that different pc the same problem persists. I'm thinking it has something to do with the HD but I'm not sure. Has anyone run into a problem such as this and if so did you have a solution for it other than formating the HD. Formating the HD will be my last resort, but I thought I would ask around if someone else had a different idea. Thanks for any input you may have.