2006 FLEETWOOD PROVIDENCE Visibilitywiper Problems

FIRST I NOTICED THE BEDROOM WINDOW FOGGING UP. SERVICE FOLKS TOLD ME THE SEAL WAS BROKEN, AND ONLY OPTION WAS TO REPLACE IT. I HAVE AN EXTENDED WARRANTY, BUT WINDOWS APPARENTLY ARE NOT COVERED. THEY ESTIMATED $800 TO FIX WINDOW. I DECIDED I COULD LIVE WITH IT. BUT, THEN, ONE AFTER ANOTHER, THE OTHER WINDOWS HAVE LOST THEIR SEAL, AND ALL OF THEM ARE NOW CLOUDY. NO ONE WILL ASSUME ANY RESPONSIBILITY FOR THIS DEFECT. WHEN YOU BUY A QUARTER OF A MILLION DOLLAR RV, IT SEEMS THAT THE WINDOWS SHOULD NOT FAIL. MY RV HAS BEEN STORED INSIDE SINCE PURCHASING NEW. THE RV HAS ABOUT 20,000 MILES ON IT. THERE ARE MANY BLOGS ABOUT FLEETWOOD RV'S AND ALL OF THEM ARE HAVING WINDOW FAILURE ISSUES. NOW MY DRIVER WINDOW IS STARTING TO GO, AND IT WILL BE A SIGNIFICANT SAFETY ISSUE SOON SO I GUESS I WILL HAVE TO...