I don't know where that sign comes from, but it seems to misidentify my browser. I use Firefox exclusively (as exclusively as possible, given that there are still some websites at Really Big company that insist on using Insecure Exposer), version 1.0.5, with the User Agent Switcher and IE View extensions (for said recalcitrant pages). The sign has been identifying my browser as Netscape 4. Any ideas?