One problem related to power window has been reported for the 1998 Chevrolet Venture.
The drivers side window regulator on my van as broken several times. It starts by just coming of track and you have to push the window to get it to close and seal and eventually the regulator brakes all together and the window slams down or you hear a loud metal pop and the window goes forward and the corner that is in the upper left is now in the center of where the window should be. It came real close to shattering the window. We replaced the regulator and it is doing it again.