If k.u.r.t finds b.htm (copy of his file) created on my box, behaves funny on his, that'll confirm it. Pictures embeded, as resources, in a dll may have to be distributed as real .png, .gif, .jpg files or linked to on some site, to keep Windows happy. I haven't tried FF yet, but even if it works, we can't have a FF only WebRep.
We're still ignoring the security settings problem too.