Not sure if other folks are seeing this, but the first image brought up with a detached fits viewer is all grey (no data). The 2nd through Nth images are all ok, but the first is blank. If you dismiss the viewer in the middle of a capture, the next fits viewer pops up with a grey too. It's always the first. It doesn't seem to be a problem beyond just a nuisance. Just thought I'd report it in case others have seen this.