Ever been to a site and been accused of having an old browser?  Like it warns you to upgrade you Internet Explorer version from 6 to 7 before it will show you stuff?

Seems there's a few Windows machines out there with some dodgy Registry settings.  There is a key in there which hard-codes your user-agent, rather than letting the broswer do the talking

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\InternetSettings\User Agent\Post Platform]

This should be empty in order to post the corerect version. There are some facebook users who are getting the IE6 version and messages because this key is hard-coded to IE6  

WARNING : EDIT YOUR REGISTRY WITH EXTREME CAUTION!!