Hey I just bought this droid 2 from a friend a few days ago and it works fine besides when the phone is on and I plug my charger in the screen will just freak out it just starts tapping and sliding by itself .. so I just turn the phone off and charge it that way and it works fine but gets anoyging when I need to use it I know the phone is rooted and has stock 2.2 firmware so I don't know why its doing this and also the charger im using is a lg usb charger and im using a usb to wall adapter maby its the charger?? Idk please help!!