Dont know if it can be seen in the pics,but the window on my drivers side door does not roll the way up. The handle slips at this point. I can pull it up by hand and it will stay. Then it wont roll down untill I start pushing it down by hand. Its a hassle when the window is all the way up and I want to lower it while driving. I have to open the door. Is there something I can adjust or replace to correct this?