this has always happened in my cutlass,over the course of this summer,i have gotten very good at taking the door panel off the doors and putting them back on.The reason for taking the door panels off,well simple,it reveals the power window motor,what i do to get them working is i take the blunt end of a screwdriver and wack the motor a couple times (depending on how hard you hit it)usually a couple good taps will get it working.After hitting it,hook the battery up to the car again and with the door panels off try and see if the motor operates and the window rolls up,then after seeing that it operates,put the panel back on .I have done this "trick" many times as said,gets annoying yes,and also look into P/W motors,i found them around $20-$30,have the mechanic replace them or do it yourself.
