baisutis

I have windows xp on my computer and one problem with it. When I instaled windows xp everything was ok. But later windows updated and the new version of media player was downloaded and instailed automaticaly. After an instaliation of new media player I can't see any video file with media player because the wiew is very dark and looks like solarize efect used. The problem is not in the video because before the instalation of new media player, the same video was perfect quality. I downloaded all updates for media player, divx, directx, but nothing has changed. Later I downloaded another programs for playing video, like VLC media player, divx media player, but the new players also show the bad wiew. What can I do?