I have an older GPS, a Garmin 152. It's been very reliable, but ever since we rolled into the new year, it refuses to calculate tide information. I can change the date to pre-2012 and get data, but nothing more recent. I'm guessing that the software was not programmed this far into the future from its original creation (planned obsolescence?), but I'm hoping there is a fix available. Is anyone else having this issue?