Using 210 and Lakemaster WI 1.0.2 with Countour Elite. Warm-boots while switching views, esp. trying to get back to the Chart on my 898 now occurs after a perfectly good operating unit was impacted by an SD card that had a "matrix" folder update that contained new hwr and ht files imported from Contour Elite software. WI Lake chip was left installed, per CE directions, and defaults were not set as a result. New waypoints and routes imported fine during the update but after about ten strokes on the View or Exit keys, restart occurs without loss of panel lighting (warm-boot). I noticed that any previous actions of menu selection are disengaged after warm boot; if I turned off a view, it was back on after the reboot. New files in matrix were the only change--six of them--named properly.