Hi all,
Well, my problem with the double sound has been resolved now. I had to set the global RX MIDI channel to 1 and then it worked with my Audya 4.
I've read about problems people have had with this instrument, but except for this I've had no other issues and its working as it should and I am going to order the 2011 styles and sound upgrade.
I get inspired when I play it and I have no regrets that I bought this instrument.
Just wanted to tel that I am happy with mine!
Christian