TFS 2010 Beta 1 Installation Bug
There is a bug in the TFS 2010 Beta 1 installation, it is described in section 1.3.4 of the Readme file but since a lot of us go read that file after installation is complete I figured the more blog posts exist about the issue the more people will know about it and avoid it. But I will not get into details or reinvent the wheel, the information is in the Readme and in this post from Buck Hodges: http://blogs.msdn.com/buckh/archive/2009/05/18/tfs-2010-beta-1-don-t-run-initial-configuration-from-the-administration-console-mmc.aspx