I am having issues playing 720p/1080i/1080p mkv files with LinuxMCE. If I install Mythdora 4.0 on the same PC, all is good. I am sure its a software/driver issue.
When I play files, there are random green blotches. If I try to skip forward, video stops and randomly crashes.
I am using Xine to play, but have tried Kaffeine with the same results.
I tried updating the Nvidia drivers, things got worse.