Trust me they are actively working on solving whatever the issue is, it just how Minelab rolls. Rarely will they discuss the details of the issue same as most manufactures as much is private tech info and the affected detectors will be replaced or repaired as soon as possible as well as the issue solved. The Gold Monster has been in the field now for several months and there have been relatively rare thus far compared to sales and detectors in the hands of the public, Nugget Shooter alone has sold more than 50 already and have had no issues that customers have relayed to me except a falsing issue with the 5 inch coil wire and he fixed it by securing the wire, I did this as well.
I did have a couple folks that did not understand the new technology when in Discriminate and thought they were getting false signals, but once I took them out and explained that they will always hear the intermittent half signals as the micro processor adapts to ground, hot rocks, and trash targets. Once they learned to listen to the processor work and dig only the good solid repeatable Beep-Beeps they were in full understanding and humming right along.
The reports of some detectors being replaced I to have heard and good for Minelab, but that may suggest also that there were some detectors with internal issues and that will surly be fixed soon. Perhaps a few bad processors? I have no clue at this point, but I am going to see if I can learn more for you all. Like I said out of all I have sold no issues other than a 5 inch coil hearing it's own wire and securing it tight fixed it.
Sorry to the folks that got one that had to or may have to be replaced, but Minelab always takes care of their customers. If any of my customers feel their detector has an internal issue I would love to have a look at it and try it before it gets sent in so I may experience it my self.