it seems that the update didn't fix the picture problem for me (or do I need to do a clean install or something?)
O.k., I'll have to look into it. You shouldn't have to do a clean install.
What if you click Start Campaign and select main campaign, does a picture get displayed?
Never mind about the red square issue, I've just noticed it happens on Firefox and not on Chrome so it's a browser video-playback issue on my end.