Originally Posted by chas_h
Yes, that was it. Thank you! But it's funny how some of the older uploads were imune to this (possibly because they were already in the cache?).
Ok, now I'm going to try your 'image on homepage' hack.
And your surmise is correct... the ones that were working were in your local machines cache as a JPG (or whatever) so they were correct but once the IE cached filled up any future 'right-mouse-save-as' files were trying to be stored as a BMP. It's a very weird IE issue that crops up sometimes with strange results.
If you have any problems with the hack, just let me know in that thread and I'll see what I can do.