Hi,
I have a bad problem with my system. When I worked on my Windows XP system for let´s say... 1 hour. I can´t really play videos. The images are really dark and sometimes I get some dark red or dark blue lines. Doesn´t really make sense for me, because after a restart everything works fine. This was test with a few containers and codecs and with different players (as well as VLC). I made an update for my graphic card a while ago. Could it be that there went something wrong? What could I do against it?
Help... pls.

