I am trying to edit a video for school on Adobe Premiere Pro CS6 Trial verson on a Mac Computer. The mac is a 2.93ghz processor with 4GB of RAM. The problem I am facing is that every time I try to play back my media in Premiere, it plays, for a short time of about 2 to 3 seconds, then stops playing. I've tried to Rendar it and see if that fixes the solution, and it doesn't. It even happens in the Previw window. I am confused as this does not happn to me on my Windows computer. Could somone please explain to me why this is happening? Thanks!