Has anyone had trouble with the transmission slipping? Sometimes, if i start it up and take off right away, the transmission will not shift. the engine will rev up, until it hits the limiter. If I come to a complete stop, shift to neutral, then back to drive, it is fine. It only seems to happen, when i first start it, at the beginning of a ride. also, if i let it run a few minutes before taking off, it does not seem to happen. Im not super concerned about it, just wandering if anyone else had the issue.