Thanks for the replies. The folders were singular, and I deleted the save folder. Same issue. It gets stuck on map loading, then reboots. I let it run for a bit to see if it just needed to configure, but still no luck. The map folder has an original basemap file that came with IGO8 - Basemap_NIMA_2012.03_130903.fbl . The additional map files are from Q2 2014. Some are fbl files and some are hnr. Is there a specific naming system for the map files?