I have some strange problems, some wmv files have gfx errors. Showing only very few colors and makes movies look like total crap. I had this problem with windows media player before installing any codecs, only works with VLC. Downloaded MPC adn K-Lite codec pack, but sitll have this problem. Anyone know what might wrong?

If it's a codec problem... exactly what kind of WMVs? In Media Player Classic go to File/Properties/Details and check the video format.
You may download the corresponding codec (package) from here:
http://www.microsoft.com/windows/windowsme...ecdownload.aspx

Also see which codec MPC uses to decode that format (Play/Filters). If it's FFDShow, disable it.

If I have understod this correct. Then some WMV9 works some don't. And it is not FFDShow that decodes..