Nah. I have the same problem. You just need to tighten the two screws that hold the glass (at the bottom) to the regulator. I've got to do it around once a year.
Take off the door panel, roll the window about 1/2 way, loosen the two screws a smidge, tip the glass all the way back, and tighten the screws. You'll be good again for months.
I just did this last weekend.
Okay, now that I've typed all that, I see Digger already said it. So.... what he said.