TargaSC

I have a 1982 911 SC Targa and have a problem with the power windows I just can't sort out. The power windows are still active after I shut the car off, even after I open and shut the door. I replaced both the switches in the door jams and both seem to be operating correctly - the interior lights come up when I open the door and turn off when I close it, and the buzzer sounds when I open the door with the key still in the ignition. Before replacing the switches the windows would stop working when I opened the passenger door but not the driver door, which is why is went ahead with replacing the switches originally. Now they don't deactivate no matter which door I open.

Any idea what might be going on? Is it possibly an issue with the relay? If so, where is it located and how would I go about replacing it?

Thanks a lot.