It is being replaced under warranty. I believe there is a part called a dryer (or evaperator) which should be replaced when the system is opened because it will pull in moisture. Is this correct?

I want to call them tomorrow and make sure this is being done correctly. By the time it craps out again, it will be out of warranty!
I have a nice POS Chevy Cobalt as a loaner

...it is parked and I'm driving my Toyota Highlander instead.
Oh, I told them that the car was sharked and not to touch the software. I just couldn't stand to remove it for the 45 minute drive to the dealer.
I owe Jon some interior pics which I will take and post when I get it back.