I went out and purchased a new Macbook Air yesterday and migrated everything from my old air via the time machine method. I was in the middle of editing a whole bunch of video shot in europe a few weeks ago... all of the videos are stored in aperture 3.1 albums. When I open iMovie 11' it shows my projects... but it also shows that all of the source video is missing. Also, when I first start iMovie... it says its loading all clips but then it doesn't load anything. I don't think this is just a problem with iMovie loading up Aperture videos... it also fails to show other videos laying around in other various parts of my computer. Anyone have similar issues?