I just got a 2005 G35, and it has the common problem of the window coming down about 4" after the auto-up switch is activated. I've reset the button in the door behind the door panel at least 3 times, and it'll work for one or two cycles, and then it reverts to coming down partially. Do I need a new window motor, or if not what is the permanent fix? Any comments/help would be appreciated.

Anyone?????