Skymap problems
 

Happened to me a couple of times now where my skymap has reverted to the start-up screen where you press 'ok' to get everything up and running. However pressing 'ok' causes it to flicker but remains on start-up screen. However, after pressing 'ok' 10 or so times and panicing about having to use a map and wishing I had read the instruction manual for my backup garmin 250, skymap starts working again. Anyone had similar problems?