Description of problem: FC6->rawhide upgrade has busted icons if I try to use Echo. g-p-m is a document with a red X, most desktop icons are blank sheets of paper, etc. Selecting Clearlooks gives me working icons again.
Same here with latest rawhide. redhat-artwork-5.0.11-1.fc7
Forgot to mention, mine was an initial install, not upgrade as Alan's, although I'm sure they are both same problem.
Same here with an Yum-upgraded FC6.
There was a broken echo-icon-theme package in rawhide for a while. I assume things are fixed now.