No Camera Attached - but it is

So I'm trying to upload some video into my archaeic iMovie 4.0. However, with the camera attached and in Playback mode, iMovie still says No Camera Attached.

edit: I tried ALL of the suggestions here:
http://www.danslagle.com/mac/iMovie/usage/5020.shtml
The camera IS a Sony Handycam. None of the Sony-Specific suggestions work.

edit2: So I remember what I did last time this happened. I used Final Cut Express. I'm trying it now, but cannot find the device through there either...