okay, well i've seen other things like vacuum hoses or something that you can check first?
also, idk if this will make a difference, but since i've owened the car (since July '10) if you have the radio off and the fan turned down you can here some motor in there sound like it goes back and forth back and forth like it's adjusting ALL the time it never stops (guessing it's the actuator idk). but i've never had any issues everything has worked fine up until now.
so could that be a dead give away i need an actuator?