FacundoBac,
If it's just happening on the MKV files, it may be the rendering that is causing this. I'm not sure why this would happen, but does your friend have the same exact televison?
--HDTech
Hi,
Hi have a samsung 52a650 lcd concted to my pc (gforce 8800gt), and when i wtch mkv files, i se a lot of red dots in dark scenes and faces, and they dont apear in my frieds house, any clue for a solution?
Thanks,
Thomas

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