I was editing some footage when all of a sudden I went back to play the footage on the timeline in vegas 7 and now it moves 2 seconds and stops no matter where i start the playback from. This all of a sudden happened last night, i thought it was a bug so i turned it off and hit play again on the timeline when i restarted it and the same thing is happening. I even pulled up another project and hit play and that one did the same thing. Anyone know what could be going on what this thing, I am in the middle of a big project and need some help. thanks