@Frustated XT user

Why 2Gb Sd card?
Nuvi recognize SD card to 16Gb.
Old nuvi on SD use folder garmin for CN new nuvi use folder Map for CN and on new nuvi you can rename map as CN 2011.40.img on older nuvi must be name of map gmapsupp.img
If ju have nuvi 1xxx or new you create folder Map on SD and rename map any name.img
If ju have older (like 7x5,2x5....) you must create folder Garmin on SD and rename map to gmapsupp.img
All nuvi support 4Gb SD card and must be formated to FAT32
FAT recognize single image to 2Gb
FAT32 recognize single image to 4Gb