Favicon only works on server
I have updated favicon.png in my web root, but the new favicon only shows when I access my tiki site from my server machine. When I access the site from elsewhere on my network I just get the IE "e" icon.
Server running IIS7, Tiki 8.1, all machines running IE 9.0.8, I've tried clearing tiki cache and all IE caches.
Anyone have an idea as to why this may be?