marcmolenaar:
It didnt happen to me, since I use xp and it doesnt allow the monitor to be set to resolutions it cannot support. It was just a newbie mistake.
Well Morpheus, in this case my friend didnt have a spare monitor at home. But a good solution if you do have one.
Sorry but enough of possibile solutions, no offence. Some are quite good as the Last known good, if you hadn´t booted after the mistake ofcourse..
I solved it like i wrote in the first post, was curious if there were any other more easier way..Last known good would have worked. But my friend messed around with the resolution and after it went black he rebooted. Paniced I guess...He´s no computer-wizard like us =)
But it seems that uninstalling the graphic card was the easiest solution and the guy i helped out didnt have any other pc´s at home to use another monitor.