Oh, I'm all worried and frustrated. I just finished about a five minute movie on iMovie 3.0.3 on my Powerbook G4 using OS X 10.2.6 and I'm just thrilled with it. Lots of edits - I like it. Now I want to export it as a Quicktime movie to my Movie folder on my iDisk in order to burn it on a friend's superdrive as a DVD and EVERYTIME I have tried in the last twenty-four hours it has locked up iMovie and made it so I have to shutdown my computer. I have exported before a longer clip with no edits and had no trouble. I need some help! This is for a show we're putting on here on March 5. Is it a memory problem?