Check the wiring in the tubes going to the doors. The only other thing that will cause this is a stuck relay -- swith them around and see if the window problems follow the relay. The circuits are tied together left front-right rear and right front-left rear. And yes, a stuck relay will run the motor when you don't want it to, will get very hot, and will drain the battery.

Also, check for chafed insulation in the wiring harness with a voltmeter between the operating terminals on the relay and ground -- a short will do the same thing. You know where the relays are, so that is where the wires go.

You might also have a bad switch -- should snap back to "neutral" and click when operated. Replace if the feel mushy -- they are about $18.

Peter

__________________
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!