My new 05 XLR has 50 miles on it. While raising the roof one day, it got half way up and I noticed it had reset my heat from both sides at 90 deg to chg the left side to 76 deg, right still at 90. Once my cd turned off and screen went back to cadillac emblem blank screen. windows routinely loose index. any ideas? havent had the dealer look at it yet. kz