I have had pretty good success setting up my Harmony 880 with My new Denon AVR-1912. Except in the area of volume control. The Denon responds very slowly to the volume up down control on the 880, sending out signals one after the other resulting in the volume slowly adjusting even after I let go of the button. I have tried to change the signal speeds and intermitant speeds, but see no change in regards to volume control.  Anybody have suggestions? I have also tried programming commands remote to remote, even tried raw commands. No Luck. What do you guys think will help?