It always is the power window regulator and its a common problem (& no, it is not the switch). I replaced mine 3 years ago with a second hand one I found for 75$. Did it myself its not too hard. The damn thing just happened yet again n i got a quote for one and its going to be 195$ for the part now. Thinking of trying to repair the old one this time, its the little bit of carbon pad that gets worn off, the mechanism is completely find asides that. Its a very long shot, will let you know if I have any success with it.