Brian –
There is a Dometic flame baffle kit that will keep the fridge lit – check out this thread:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/25701378/page/2.cfmI made my own version of that kit, but it is not any better than the one sold by Dometic.
I also added a flue deflector, so that the hot air would be guided up past the coils and out the vent:
DeflectorFinally, I added insulation (and incidentally storage) around the fridge to keep the fridge cooler:
Insulation and some storageThese are not difficult projects, and I think you will soon notice a big difference. Let us know if you have any questions.