Quote - Try to "play" with the "background draw" settings in the preferences. This can make a big difference, especially with this problem.

Thanks wabe - I've already done that and set every slider to fast to redue overload.  I'm just ignoring the camera tracker window now and using the on screen handles to move the camera.

Have you heard of others experiencing similar problems - I've scanned though this (and other forums) with no real result

Best

Chris