Andi Airich

Hi Guys, I now own a PF50KS (KS). Before I had an PG30JG which was connected to an Logitech Bluetooth adapter and I was able to control the sound volume over the LG remote. I tried to setup the PF50KS in the same way, with pressing the volume control buttons on the remote only a stop sign appears. Can anyone tell why this happens ? The WebOS version is the 3.11...., an update is not available for Germany. PLEASE help :) !