I used sum light grease(wd40) on the edge of the rubbers cos i had the same problem.Worked a dream but u have to keep doin it every so often.
didnt that not make the wondows greasy? what rubbers? dont they come in contact with the wondows?
THE RUBBER AROUND THE WINDOW(SIDES ESPECIALLY).TRUST ME,U WONT HAVE TO CLEAN MUCH & I GUARANTEE IT WILL WORK WITHOUT HAVING TO RIP OFF YOUR DOOR PANEL LIKE DINO SAID.ITS UP 2 U THOUGH.WAS JUST TRYIN TO HELP.