I have lost both the direction and altitude displays on the Blue Fire system. They both previously worked but have stopped and now just show "NA". The second issue is with the fuel gauge. The previous gauge that showed simply nonsense data when starting up until enough fuel had been used was irritating in that it didn't store and continue to use some form of averaged data but at least it showed up. The new fuel gauge now works after a while sometimes but often doesn't show anything even after hours of driving. It has rendered the miles to go function useless. It would make sense to just store the average fuel economy when the system is stopped and restart from that position. That's the way a car works for fuel economy. At the very least, the "turn off until we get a good average" must be fixed to be functional. A related issue is the use of a generator which is common in RVs. The miles to go is really not very useful when adding in the fuel used for the generator so the display isn't all that reliable. Is there a way to add a fuel flow sensor for the generator to the system? That is really needed to make this function worthwhile. The other functions are very useful and I like the gauges but the non-functional ones are really disappointing and should offer capability not in the dash itself.