On several occasions I've found the driver or passenger side windows to not be in the fully up position. I'm sure I didn't lower them. Any ideas? Another issue is a clunk from the seat frame area when I go around a corner relatively quickly. It can happen on a right- or left-hand turn. After the first turn, it only happens again on a turn in the opposite directions. Any suggestions would be welcome. The car is a 2000 528i without the sport package.