Clear your browser cache, clean out all your temporary internet files and then refresh the page and try it again. You only have so much internet file space and once that is maxed it tends to do that .bmp thing.
Go to Tools -> options -> delete temp internet files.
kinda sucks, but i think my computer is just possessed or my monitor is. when i look at the board at work, all the pics show up great. when i look at it here, every pic is way way dark. its like the internet is set to dim. i dunno.