Thanks, I followed your advice, and after the usual 'chase your tail' episode where one update messes up another thing I finally got it running. It was a painful process though, with AMS2 and Assetto Corsa having issues where the mouse became unusable, and so I was even unable to exit the game the Oculus Rift S stopped working, all games had no controller assignments, etc. I basically had to go round and reinstalll all the hardware, numerous restarts, change the USB ports for the Oculus.....
Wow, not a lot of fun. However, I finally got it all working again after a few hours
Thanks for your help on this!
Les