Wow, you guys are quick.
I was fixing the favicons on all the sites today. I misplaced my original EQ favicon, so was using the ET favicon to troubleshoot the issue. Once I figured out the problem (old EQ favicon showing), I replaced the Treo favicon with the blue Q favicon. If you Control-Shift-R, it should show the new favicon.
Funny, I was at the vBulletin forums (board support) today and one of big guys there was saying favicons were a waste of time. Glad to see people DO notice.
Let me know if you continue to have trouble with it.
-Chris