BaseCamp Topography disappeared while viewing on my MAC screen

Former Member
Former Member
While moving around in Basecamp, zooming in and zooming out to view my tracks, BaseCamp froze and then the topography disappeared. It came up with some kind of error, it happened quickly and then it was gone. Now I only see the yellow map with roads and my tracks and no topography. The options under display are all checked to show but they don't show. I rebooted but still nothing. How do I get the topography to show again? I hope someone can help me! Thank You!