There is also something else out there called Vista Transformation Pack. It contains a lot of 3rd party components that includes a sidebar, login screens, startup screens, etc.
Link: http://forums.xisto.com/no_longer_exists/
I work for a cellular company so I might be able to help you. First of all, is it possible some form of moisture could have gotten inside of the phone? RAZRs are very sensitive to moisture and the keypad stopping to work is an indicator of this. You said you never dropped the phone which is good. Also, where do you keep the phone while it is not being used? Like a pocket or something?