I am trying to upgrade a site to the latest version of Telerik and am running into a strange problem. I went through my code and *think* I have found all references to the old telerik controls. I removed all .dlls from my bin and added a reference to the telerik.web.ui, so I now have a telerik.web.ui.dll and telerik.web.ui.xml. It builds with no errors, however, everytime I build it, all of the old .dlls come back. I am using Source Safe if that makes any difference, though I checked out the whole project when I made the above changes. Any ideas?