power window problem

I have a 95 Taurus, 125K and runs like a dream. Best 1000 bucks I ever spent. the passenger side window works once in awile, but is never consistent. some times the driver side button works, while other times the only way to open it is with the passenger side. I have yet to see both sides work. I've pulled both clusters and check connections and continuity what do you guys think is next. Could it be the motor connection?

thanks
JKdon

If it always works perfectly with the passenger switch during those times when the driver's switch doesn't cut it, then you either have broken wiring or a bad switch on the driver's side.

It never always works on one side, infact today the drive side did the job. last week I could only open the window off the passenger side. I even swaped the switches with the door lock on the passenger side. that won't work for the driver side, it is a different cluster of switches. I'm lost with this one, I need to find some consistency.

thanks guys
JKdon