Passenger side window

I have a 1988 325 and every window/sunroof works except for the passenger side front window. Last month, every window worked escept for the passenger side rear window, but is now switched. Tried changinf fuse but still did not work. Any ideas? Thank you very much.

You may have a short in a wire somewhere. Either that, or both window motors are getting old. If they are slower than they should be, the motors may be getting ready to go. If not, then it's likely a short in the wiring.