We have a number of friends who stay at "24-hr. town" during the Old Pueblo 24 hr. endurance ride. We camp in and around Black Mtn. for ATV rides just not during the bike races. On many on-line boards, a common answer is to say "do a search"...often that's considered a rude response...but really...if you do a search for my various posts with my user name or 145RB Baja, I think you will find the basic answers cause' I asked a lot of questions and got alot of good answers. The window that moved downward in it's sidewall opening was the one nearest the front on the curbside of the unit. I had to carefully remove the inside metal frame, take the glass frame out of the wall, re-position the adhesive gasket on the exterior window frame and re-install in the order it came out, and re-caulk with clear sealant on exterior. A helper to hold the glass stationary is a great help.