I am a new Site Collection Admin for a SharePoint 2010 Site.
I just started developing today and am already troubleshooting my first issue. I am having trouble adding a user to a group. It doesn't matter which group. Members, Views, even other Site Collection Admins. When I attempt to do so I am able to get as far as picking a name from Active Directory, however when I click OK, I get this message/Dialog and the name is not added to the group:
"Internet Explorer cannot display the webpage"
The site has virtually been untouched with the exception that turned publishing features on.