Uninstall the drivers, device, and select a different USB point. Out of the box the rudders shouldn't need any calibration. What ever you do, do not use the windows calibration tool, it definitely messes up the throw in DCS. If you have done that, go in and delete the calibration by "resetting" the calibration under the windows controller panel.
If you must use the TM tool, did you start the program with all the TM devices unplugged? Seems a lot of people miss that important step. When you unplug them the second time the program should continue on. Sounds like you missed a step along the way.