Hi folks, new to this forum. Or to any forum. So your patience is appreciated. We have been traveling with a 30' Class A for two years, our first RV. We bought a Rand McNally TripMaker RVND 7710 GPS. It was great, had all sorts of RV specific info, got us where we wanted to go, had some great points of intertest, recalculated quickly. Just excellent. Then it froze up. We called Rand McNally and they walked us through fixing it through the computer, but it didn't unfreeze. We were near a Camping World and since we had purchased it through Camping World on line, Rand McNally contacted them with the info we needed to return it for another. Finished that two month trip using the new GPS. This summer took several more local trips and the GPS froze up again several times. We hooked it up to our computer to fix it several times and it would work for a while. Now it is permanently frozen. Still under warranty (for one year) and RM will replace it. MY QUESTION is - Has anyone had this problem with the RM Tripmaker. I loved it but am afraid it will freeze up in city bypass traffic. Are there any other RV specific GPS's? Can anyone share their experiences with GPS's. Sorry so wordy, but please help if you can. Thanks in advance!