Using the Vortex generated Direct TCP/IP list, You can switch from one server to another without shutting down and restarting D3. You can also do this without Vortex. All you have to do is Alt-Tab out of D3 back to the tracker, Look up and remember the IP:Port of the server you want to join, Alt-Tab ...

My TCP/IP Game list works fine with Vortex 0.2.1.0 . Here is how to set it up: Install Vortex. You can get it here: http://www.slyclan.de/ . In Vortex click "settings" then "D3 Servers" on the left, then select the "Relay" tab on the top. Check "Activate Relay-Function" and select a port other than ...