I just discovered this issue - it may be only relevant to 2.1 since I upgraded (or to something else entirely) but when my Eris is plugged in and I use it the Home Screen seems to act crazy - well not that crazy - just that with motion the Homes Screens roll "left( that is to the left most screen) almost like I am using the track ball (but only in one direction) - unplug it and it works fine - its not a major issue but a wierd one - anyone else notice this behavior.