It looks like my video codecs are screwed up for some reason. All video 's I watch using applications like VLC media player or Kaffeine are displayed like my monitor is set with the brightness too high, and every light color is turned to white. I don't have any knowledge about codecs and video stuff, but unfortunately, when I make a snapshot with VLC, it looks perfect.
So I can't explain my problem with a screenshot, but I hope you understand it. Does anyone know what's going on?

Before I forget: Sometimes mplayer plays wmv or avi files normally, but all other applications show the movies too light.

First of all how much beer have you consumed tonight?

If you had the wrong codec the vid wouldn't play at all. Are you streaming these files?