Hello all,

I've been dabbelling with Linux on and off for a few years now and over the past 3 months Ubuntu has become my main os.

In the last week I have encountered a problem that I cannot solve, my .avi and .mkv files do not play correctly.

They play audio and the visual's are present when the player is behind another window (sounds strange I know). To me it sounds like drivers or codec's.

drivers I've reinstalled as with the codecs ( as well as I can )

any help would be appreciated.

Thanks

Matt