I started an upgrade (clean install) of Windows 7 Home premium on my VAIO VGC-RB64G machine which had XP MCE as the operation system. I have an NVIDIA GeForce 8400 GS vidio Baord and ViewSonics display.
The install seemed to be going find and got to the point where it restarts the machine and is then running on Windows 7 which seemed to be going fine and it contiued the install. I left for a few minutes and when I came back the screen was blank and I could not get it to give me a display on the screen.
I tried a wired mouse and still got no response (screen completely black with no cursor or any kind of display).
I then tried to use a rescue disk which seemed to boot up but still had no picture eventhough the blue light indicated that the display was active.