I have a 93 960 series and I was having some of the same problems, everything works BUT the actual moving of the window. I took the car to the mechanic and he said it was the switches, that cost $32, so instead I took apart the switches myself and cleaned them. This was about more than 4 months ago. I havent had a window problem since. This should fix your problem because we have the same kind of switches, and I would also suggest the same as "twofourty"- Get some towel out because there is a rollerball and two small thin parts that will pop out FAST. I hope you get this fixed, I had my window down 5 inches during a rain storm......so I cleaned the switches :)