Hi guys,<br /><br />My two seasons' worth of experience with the Lowrance LMS 330C combo unit has not been overwhelmingly positive. I.e., it's great when it works, but too often it does not.<br /><br />At first, the boat dealer hadn't realized he had to hook up the power for both the main unit and the GPS antenna, so the electronics dealer had to come and fix it after I would just get the "GPS unit not responding" message.<br /><br />Now, we have had problems many times that the depth sounder stops responding. It just locks up on some depth and just doesn't start back up. It is not like when I am going too fast and the depth number just starts to blink on the last depth it had a fix on. Turning the unit off and on again usually fixes the problem.<br /><br />Then, today, I again got the same "GPS unit not responding" message. Has happened a few times before. Tried turning off & on a few times to no avail. Then unplugged unit completely, turned back on and it worked again.<br /><br />Are these common problems to these units? Does it sound like it is time to get a new one before the warranty expires?