I konw this is drifting off topic (again), but there is some chatter on the web that the attachment problem with IE8 may be that some of the images are CMKY while others are RGB. Apparently, IE7 would render both, but IE8 won't render CMKY. On this page:

http://www.runtimedna.com/forum/showthread.php?t=26024&highlight=translucence&page=3

the first post show no image, but the second does for me. It would be great if someone could figure out how to check if they are in fact different color spaces and that is what's causing the problem. Thanks.

Whichway