Hello all. I have been sitting here in front of my computer for a few hours now trying to resolve this problem, but it's stubborn. What I am trying to acheve is a split screen so you see me on both sides (pretty much talking to myself =)). Well I crop each clip so that half is cut out... Now when I play the video or export it, it is very choppy and runs really slow. I have tried interlacing the consecutive frames, and while this seemed to help a little, it's still slow. Is there anything I can do to run this at the correct speed? I do have a AMD Athlon 2800+ processor with 512 MB of ram, so it shouldn't be my system. Thank you all for taking the time to read this.