Opera and FF typically will work when this issue arises but will not work within IE a lot of the times. Now lets for example start with something simple to which I will be using my site as an example as I normally do :o) we have a favicon that is somewhere in the head <link rel="icon" href="http://joshknutson.net/images/icons/ favicon.ico" type="image/x-icon" />'
This will not show up in IE but will show up in other browsers, so I then check Microsoft sites to see how they do it. My results: <link rel="icon" href="/s/wlflag.ico" /> from live.com <link rel="SHORTCUT ICON" href="http://hp.msn.com/global/c/hpv10/ favicon.ico" type="image/x-icon" /> from msn.com Now what could be the difference between what didn't work for me, but will work somehow for Microsoft. After fooling around this is what I tried
<link rel="shortcut icon" href="http://joshknutson.net/images/icons/ favicon.ico" type="image/x-icon" /> which works for some unexplainable reason unless I am just caching the results of playing around with it a few different times, this was tested within IE7 and seemed to have worked for me. If need be check out http://joshknutson.net/index.cfm to let me know if this doesn't work with ie6 and such