When I play mkv or avi files on VLC, the video sometimes freezes or stutters. This didn't happen on my Leopard-right now I am on the Snow Leopard (not sure if that makes a difference or if its because I upgraded the VLC?) I am using the VLC 1.0.3. I searched old forums and found some tips-but they didn't seem to help...I tried going to Preferences in VLC, clicking on Files and raising the caching value in MS. Then I went to MMmap and checked the "use memory mapping" Neither of these things helped. Is there anything I can do...?