spalding4. Yes, as you state we all expect and use different facilities from keyboards. Regarding different OS's I'm fortunate possibly in that I don't have a problem learning a new OS, to me it's like driving a new route to get to the same place. The Korg video already mentioned runs for 1hr 15mins and is well done by Korg to eliminate OS learning problems.
Having ordered a Pa800 at the Keyboard Festival Korg gave me a DVD of the Tutorial which obviously contains a better quality bit rate picture.
We spend thousands on all these keyboard and all manufacturers should provide a DVD such as Korg have done FREE.