Garmon Montana (WebUpdater) software version 5.60 in GPS technology and devices Posted February 2, 2014 · Edited February 2, 2014 by Alfresco2006 To my knowledge this update only invalidates pirated official Garmin maps. I can assure you mine isnt pirated. My topo maps work fine, but my legitimate City Navigator maps for europe and America wont work. I have found literally hundreds of posts about this problem all over Google with many saying they spent hours on the phone with Garmin. Anyway i have cured it by going back to the previous firmware as i choose not to spend hours on the phone with idiots who install spyware that affects legit units.