We moved to a new tfs, with a new name, the old one doesn't exist anymore. When I create a new blank solution and select file|source control|change source control and click on 'Bind' Visual Studio tries to connect to the old tfs.
Under Team|Connect to tfs|.servers I removed the old one and connected to the new one only. Also my workspace is mapped to the new server only.
I cannot understand where Visual Studio stores the old tfs or how to destroy it's memory.