Do you get a normal response when you go to the properties tab of 'control panel/game controllers?' if not you.. and I'm shooting suggestions here.. you may have it plugged into a USB1.1 port on your PC instaed of a 2.0 one or there is a hardware fault. I use DFP with LFS without a problem.
Well.. I'm mentally exhausted!
Reading this thread from beginning to end is just pure gold for a completely talentless paint scrubber such as myself.
I'm a GTL bloke and only bought the S1 license as a 'need a holiday' break from my countless disappointments in trying to get 'fast' with that sim. You chaps have given me a serious amount of food for thought ... most excellent thread!