I picked up mine yesterday from BB (they honored the 10% off coupon!), took it home, and used the "Upgrade Remote" option in the new software to convert my 880 over. Everything worked as expected, I had to go and re-do all of my custom buttons, etc, but I'm having a problem with duplicate entries showing up on the remote for several activities and not in the software. Multiple updates to the remote did not remove these duplicates.
As an example, for my Xbox 360, I have buttons 1-7 set to "On/Off", "MCE", "A", "B", "X", "Y", "Eject" in the software, but when I select the activity it shows 3 pages of buttons that effectively duplicate what I have set up, as well as add a couple more that I don't even have configured. The buttons also appear to be randomly placed and do not show up as I had arranged them.
The only thing I can think of is to completely remove the activity, update the remote, add the activity and re-do my configuration, then update the remote again. Has anyone else had this problem and can offer any other suggestions before I start from scratch?