I've recently been playing around with some codecs to play an .MKV file, and had some luck yesterday. It worked perfectly yesterday when playing the music videos I have and today it shows the audio but where the video is supposed to be, it has a visualization screen (those coloured line thing).

Any suggestions of what I could do to fix this? I can't do a clean install of XP because I am part of a domain and getting a re image would be time wasting and pointless.

Thanks in advanced to everyone that comments

try installing bsplayer or either vlc media player.. it's free just search google check whether it helps or not.

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