Has anybody heard of problems with the windows not retracting correctly? When raising or lowering the hardtop, the windows return to the closed position at the end of the cycle. Or I should say, they are supposed to. Many times one window will stop mid way through the cycle and will drop as though encountering resistance. It occurs on both the driver side and passenger side and both together. It will also occur when just rolling the windows up while using the switch that retracts all windows together. BMW has not been able to fix the problem. My service advisor tells me that I am the only person to ever complain. Here is the best part. This is my second E93, the first one had the exact same problem, BMW tried to correct the problem on 18 occasions totaling 56 days. Finally they threw in the towel and replaced the car, although I believe that was done so they would not have to label the car as a "lemon". I find it hard to believe I have had the identical problem in 2 cars and yet nobody else has had this issue. Any thoughts or comments? Rick, Fort Lauderdale.