I think I have most of my 'solution' for now.
The 801 will be donated to some Win user someplace.
The majority can be used to accompany refurbed PCs for use in Skype.
Refurbed units only have PCLOS on them
The original question remains unanswered ....... essentially why are the 850 cams not supported presently? I think I will just leave it ........
The 850s can go back to the storage and I will try again in the future ..... or donate them ....
Thanks for taking an interest