After setting up TFS 2010 on a new server (running Windows Server 2008), everything seems to work fine, except for the Documents section of any TFS Project. When the TFS project is initially opened in Team Explorer, it shows "Documents (working...)" in the project tree, but it quickly changes to the image below. I cannot right-click on the Documents folder for a context menu.
I don't believe this to be a rights issue - the account I'm using is a Project Administrator.
Are there any other steps I can take to diagnose the problem?