If the screen goes black shortly after the Windows logo, the video output might not be going to the correct display. Have you tried the special keys to select the correct output? If not that, perhaps the resolution is incorrect, try starting in Safe Mode to see if you can get a picture. A driver problem might also be involved, so Safe Mode would help with that also.
Can you hit CTRL+ALT+Del and get anything. The background will go black if the system has not been activated and only certain utilities will be available. But if this is the case, you should be getting some type of activation message.