http://blogs.technet.com/b/speschka/archive/2010/02/13/figuring-out-what-claims-you-have-in-sharepoint-2010.aspxOne of the interesting problems I was working on last week had to do with some strange permissions errors on a claims auth site. Part of the difficulty in troubleshooting the situation is that we were not / are not enumerating the claims that SharePointen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/speschka/archive/2010/02/13/figuring-out-what-claims-you-have-in-sharepoint-2010.aspx#3530062Thu, 01 Nov 2012 14:55:58 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3530062Mark<p>Cannot add this webpart to SharePoint Server 2010 &quot;Cannot import the webpart&quot;</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3530062" width="1" height="1">http://blogs.technet.com/b/speschka/archive/2010/02/13/figuring-out-what-claims-you-have-in-sharepoint-2010.aspx#3344523Thu, 15 Jul 2010 21:29:18 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:3344523Joe<p>I have same problem as you did. I was able to add a FB user to the web application, but I got &quot;access denied&quot; when I login. Are you able to fix the problem?</p> <p>Thanks,</p> <div style="clear:both;"></div><img src="http://blogs.technet.com/aggbug.aspx?PostID=3344523" width="1" height="1">