I just had both servos replaced on my wife's 2001 RX300, to the tune of $600 at my local Lexus dealer. They let me drive a 2007 ES300 around for two days while waiting for the parts, and I got a really nice bottle of water out of the deal.;-) Any idea if this is a common problem? Have they worked the bugs out of the servo design, or is it likely to occur with newer vehicles, too?