Also keep in mind that your pinky is 'programmed' to move in tandem to your ring finger. Specifically, it's seems that when you bend your pinky, the ring finger wants to follow along. My theory is that because of this, your pinky is thinking "Well if ringy ain't goin', then I ain't goin'!" [br][br]...ok, fingers don't actually talk, I think....
.....[br][br]Moral is, your hand is a system and has spent your lifetime learning how to do things as a team. Now you're trying to ask them to be a bit more independent. But you're not used to using them in this way so they'll more easily default to how they normally are asked to move and work.
Literally, I would just get your fingers in place for that G chord and just hold it and strum it. Don't even try to transition to it from another chord. Examples I've used recently, one of them was learning Peter Frampton's 'Baby I Love Your Way'. Most chords are physically not difficult for me to play but that first chord in the opening/verse strumming riff is just a chord my hand never played. For whatever reason, I couldn't get my hand to just land there. I mean, I've been playing a long time. Easy peasy? Most stuff is easy enough..That chord?
So I just got my hand on that chord and just strummed away. The challlenge for me was that the chord changes by removing just the ring finger. So all four of my fingers were like 'Wait? What?' (I still contend my fingers don't talk.......)
You get my point; just isolate that one thing and work it until it is comfortable.