I set up 3 activities (Watch TV, Watch DVD, Watch DVR) on my Harmony One for my home theater system (Onkyo HT-S9100THX, Panasonic 50" Plasma, Panasonic BD35, Motorola Cable Box), but on 2 of them, the receiver is not being controlled for volume or mute. Instead, the TV volume goes up and down. "Watch DVD" is the only one that is working properly - the receiver is being controlled for "volume". I checked the settings and even went through set up again, but the problem remains. Please advise what I can do to correct this problem. Any input will be greatly appreciated.

There is a question during activity setup that asks which device controls the volume for that activity. If you answered the TV that would explain it - you need to rerun the activity setup and tell it the Onkyo controls the volume. If you did tell it the Onkyo and it didn't work, you can fix it by just going into the activity button customization and remap the volume buttons to the Onkyo. You can do that with any device and any button in any activity. Each activity and each device has it's own unique button layout.

Yes, I did tell it to have the Onkyo control the volume during set up, but I didn't go into customization. I will do that when I get home. Thank you very much.