During a recent cold snap (5 degrees F; -15C) the windows on my B9 A5 Coupe (18), which drop about 1/4" when opening to clear the frame, had issues. The passenger side did not drop on opening, so when the door was closed it caught on the frame. On the driver side, while the door was open, the actuator/control unit/module went up and down the 1/4" continuously until the door was closed. Anyone have this occur previously? It looks like there are issues with power windows generally, but I haven't seen this particular issue.