Mine did that same thing. Turned out that my window regulator was shot and of course I thought it would be a good idea for the dealership to do it. $440 later I have one working window.
SOLD - 02 WJ, 4.7L H.O.
SOLD - 2007 Lexus IS250
CURRENT - 2011 WK2 Overland Summit 5.7 - 275/55R20 Duratracs, tinted, hemifever, CAI, Exhaust.