Zumo User Forums

Problem solved. The dark patches are indicating elevated terrain such as mountains, hills etc. Took 3D Terrain off in the settings and they've now disappeared. You can see in the attached photos the dark outline next to the river is an escarpment in the first picture and nothing in the second once ...

Thanks for your response Stu. I don't think it's electrical interference as if that was the case the issue would be more prevalent, only happens sometimes but often enough to notice. Looks exactly like grey clouds moving across the terrain, superimposed on the landscape. Will make a note of when ...

Hi, just got a Zumo XT recently and have frequently noticed dark scrolling patches on the screen which move along almost as if they're clouds which I'm riding through. Clear days but even if there were clouds about I don't think it should show up on the screen. Doesn't last but returns ...