BOTH POWER WINDOW REGULATORS FOR THE BACK WINDOWS FAIL TO RAISE AND LOWER THE WINDOWS, LEFT SIDE IN EARLY 2004, AND NOW THE RIGHT SIDE IN LATE SUMMER OF 2005. I DETERMINED THAT THE PLASTIC MOLD INJECTED SLIDER (INSIDE THE METAL TRACK FOR THE WINDOW) IN THE LEFT REAR WINDOW HAS BROKEN, AND I FIRMLY BELIEVE THAT IT IS THE CASE WITH THE RIGHT REAR WINDOW ALSO. I AM SIMPLY WAITING FOR THE FRONT PASSENGER WINDOW TO BREAK AS IT IS EXHIBITING SLOWNESS WHILE GOING UP AND DOWN. *NM