Seems to work fine for me when I tried it in your 
account? I can't find the red x's. It's possible 
that RS got a little confused since we cache 
images for a short period of time.

If it still gives you trouble, e-mail me or post 
in the RS forum since I check that more often. 
Unviewable images that are normally okay would be 
a top priority bug and would get worked on as 
soon as I get word something is bad. Sorry about 
the inconvenience.