Hi. I have a similar problem only with IE9 (Firefox / Chrome work well). During a login page appears the following statement
"Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
etc. ......"
Error Details Web page
User Agent: Mozilla/4.0 (compatible; MSIE 8.0, Windows NT 5.1; Trident/4.0)
Timestamp: Fri, 14 Oct 2011 08:11:48 UTC
Message: Permission denied
Line: 22
Character: 4250
Code: 0
URI:
connect.facebook.net/it_IT/all.js
I think that it' is a problem due to all.js facebook (documented also in Facebook Bugzilla)
Do You have provided a fix for this problem? Thank you.