Every day is a new day! I started up my system today, plugged in the USB cable to my PodXTL and voila! the new hardware was recognized and all the drivers are now up to date. Everything is working as it should. Wouldn't it be nice if Line 6 would issue an update to the XTL or the Variax 500 just once in a while? I feel abandoned. That hardware still has a lot of usefulness left in it.
RiffRon's post in Device Not Detected was marked as the answer