it is not some test with the drivers guys, it is what most monitors(new ones especially) do when there is no signal... it means the graphix card isnt sending a signal to the monitor at all, could be a broken graphix card, bad cable/monitor, or your mobo not sending data to your graphix card for some reason.. i ahd the same trouble but it was caused by a bad graphics card... try your old graphics card again, or call the computer guy to your house to try it.