I recently purchased and had installed a Raymarine C70 GPS Chartplotter/Radar. I am experiencing intermittent problems with the unit completely shutting down and then coming back up again. It is kind of like a re-boot on a computer. The boat yard where I purchased the unit (and my boat) seems to be baffled by it. They have switched out units once already. The guy that owns the marina where I keep my boat is saying that he heard that Raymarine is having a known problem with the software in the C70 and are actively working on a fix. I would be curious to know if anyone else is having the same problem or has any info on it. It is very aggravating since it always seems to happen when I need it the most. Any advice would be appreciated.Thanks