I finished putting together my new computer. Everything was recognized fine in BIOS. I then loaded up Windows 7 to install. Windows seemed to be installing smoothly. All of a sudden I have no control over the mouse and keyboard and also no monitor signal, screen goes blank. Computer then restarts after a very long time and says one of the configurations or hardware must have changed and restarted. After that, no mouse, keyboard, or monitor signal. I cant even go into Bios. Whats wrong? I see the power led and hdd led blinking once in a while.