Hi all. Recently purchased 2009 Tahoe LT, with remaining factory warranty and purchased the extended 5 star warranty from the dealer. While checking all features, it was found the Rear Climate Control with Rear Seat Audio Controls seems to work properly but the display is blank. Any ideas? I'm wondering if I'm doing something wrong, so before I take it to the dealer for repair, I wanted to see if anyone had the problem previously. This is what it's supposed to look like... but the display is blank. http://assets.clickmotive.com/ail/stills_white_0640/5489/5489_st0640_086.jpg Thanks for any help.