This might be a browser specific thing. I'm using Chrome and don't have any problems.
Do the pictures stay centered on your screen as you go to Next Image or Previous Image? Mine jumps back to the Top of the page with every picture change leaving 1/2 the picture on the screen. I then have to scroll EVery picture back up to the center. What about logging in? What does Always Stay Logged In MEAN? It doesn't seem to mean anything. Ah, well. We certainly have WORSE problems.