Using D7000 for video, tested previously had no problem, then... Video flickers showing nearly solid colour screens of red, purple, black, etc, for a frame or two, then resumes normal recording. If anyone knows what would cause this I'd love to know. The longer I was using the camera, the worse it got, and the faster it happened after starting "rec." https://www.flickr.com/photos/p1x/23080689114
Anyway, it was causing the video malfunction, as well as some other malfunctions in some specific modes (scene mainly). User 1 and 2 had some mild effects. Oddly it worked fine in A, S, M and P.
Removed the batteries from the grip and everything is fine. Interestingly, the vertical shutter release button still works with the grip empty.