AARRGH!! I'm in SG hell! Somehow, my video adapter (or something) got reset so that all images from the net are pixelated-- ie: composed of little squares of color. I don't know how to fix it or reset it. Strangely, images in my "pictures" folder look fine. Something is out of adjustment, and I don't remember adjusting anything.
I wish there was a right click function in life that would open a bunch of new functions.