I'm experiencing some inconsistencies in iMovie. I'm trying to put together a number of clips. They are all in avi format, and all in my iPhoto library. I opened iMovie for the first time. It asked me if I wanted to create thumbnails. I said OK. Then it started importing, but I only got two videos is the "Media section?" (or whatever it's called). There is a pattern. These are both from different cameras, and the rest I wanted are all from another camera still. (There were clips from three cameras). So I'm wondering if it's something to do with that. Anyway, at the moment, I'm stuck with two files in the media section, and I have more clips I want to put in there. How? Thanks. 