The problem is that your video card is setting its default resolution at it's highest refresh rate, which probably is out of range of your monitor. I see this allthe time at work with NT4, as the HP monitors we use go "Black" when a unknowing user sets his resolution to look at a picture or something. The fix is to go into vga-only mode (safe mode with W2K) and manually set something like 800x600 or 640x480 and 60 Hz refresh and then reboot into normal mode.
Remember, test all modes before applying them, it saves a lot of headaches.
BBA