GPSMAP 60CSX. I recently added the Ibycus USA 2.01 map set. On a recent trip that included travel in the US and Canada, most of the Topo Canada information was hidden by the Ibycus USA maps for a number of miles into Canada. When changing resolution, I could see the Canada information render and then get wiped out as the US map loaded on top. It is as if the Ibycus USA maps are larger in area than they need to be and that larger area is not populated with any information. Once farther from the border the Topo Canada maps would view properly. Has anyone else noticed this and is there a solution?