I've had my 880 for 11 months now with no issues, then suddenly this week I started having problems charging it. Sometimes I couldn't get it to dock at all, sometimes it would beep and show the slideshow like it was charging but not actually charge. I cleaned the contacts with a pencil eraser and alcohol and let it dry a bit. When I put it back on it docked fine and looked like it was charging. But, when I took it off an hour or so later it was not charging and the rightmost contact was black like it was arcing or something.

So, I got out some fine sandpaper and used that on the contacts... so far it seems to be working but I'm worried it's not going to last. Kind of sucks given the only reason I bought the 880 was the dock, now it's a liability instead of a feature.