I bought a 2000 Kia Sportage 4 door yesterday. I noticed today that the driver's window rolls down fine but gets stuck going back up. The glass gets cockeyed with the back going up slightly higher than the front. You can use your hand and straighten it then the window goes up sine. I've had cars in the past that did this and it was caused by a worn out bushing. Is it the same with the Sportage or is it something else?