Like so many, I couldn't wait for iMovie 3 (I was the first to post the download availability to this list) but had to move back to iMovie 2 because of performance issues (don't bother trying to address those, I already ran macjanitor, etc. ad nauseum). However, I opened up an iMovie2 file in iMovie 3 and adjusted the sound in a couple spots and now that I went back to iMovie 2, it won't open up. I went into the project file using TextEdit and changed the external setting to 2.0 instead of 3.0 (which is what iMovie 2 uses) but then it lost the application association. I then ran a tiny utility I found that restored the iMovie 2 association, but it still won't play. Does anyone have any ideas??? Kevin Ledgister