Yes, I have the same problem with my Sony DCR-TRV240. The thing is, it worked perfectly in iMovie 2, but since I downloaded 3.0.2, I can't the the onscreen controls to work consistently either. I am assuming that it's because the camera is not supported, but, as you said, you can work around it. Basically, what I do is use the on camera controls since my camera is usually hooked up right next to my computer.