I drafted this some time ago and never posted it.  These are still a problem in search of a solution.  McClain’s “fixed’ the window screens that attach to the inner frames when the coach was in last time, but the weak connector with the pliable glue in the Texas heat again conspired to loosen the screens, and now they are falling off the frames again.  Winnebago, please recognize that this is an engineering embarrassment.  I am going to work on finding a solution and once I do (I may have new connectors fabricated), I am going to make them available at a nominal price via Pay Pal.  Stay posted.