When I first connect to a computer in this case, windows 2003 I get a nearly
black screen, I can tell where the usename, password fields and buttons are
located but for the most part everything is black in color. For example the
buttons I can see the shape of them but not the text lables on the buttons.
The text boxes where you type are black, all I can see of the text boxes are
just the outline.

This just started to happen a few days ago and there is nothing in the event
log.
The only thing I noticed was the C: was down to 15megs but I made about 8
gigs free on the drive. I restarted the computer twice now.

The computer is a domain controller.

Once I log into the computer all the colors go back to normal, so I can see
everything.

Any ideas?