There was a long thread (30+ pages or so) about the infamous remote control, its shortcomings, and (most important) how to replace it (including pictures) with the Comfort Control Center (CCC) model.
http://www.montanaowners.com/forums/...control,center
A search of the archives (click on "Archived Posts" in the Search In area) should locate lots of information about this really bad idea. Dometic used to replace them under warranty, but I doubt they will do so now. You will want the CCC model and not just any thermostat from Home Depot. Reading the old posts will tell you why.
The post above will be invaluable when you finally go ahead and make the change.