I am experiencing the same problem with capture:
When log and capture, FCP will not recognize the camcorder and show video.
However, It does let me control the camcorder
The Same for iMovie.
This problem seems to be solved only by rebooting and pulling out all fw connections. And sometimes that does not work
When it works, it may work for only a one time capture. If I pause or press stop and try to play and capture again, it DOES not recognize the video. Again, the controls in log and capture and iMovie work, but no video.
I have reinstalled quicktime pro, V. 7.xx, OSX v 10.4.7, iMovie 6.xx, Final Cut pro 4.5.x
I get the thought that there is a glitch in QT or the OS. I have been to many forums and no one really seem to have the REAL answer. But any help is much appreciated.