Have been having trouble getting the Nuvi 255w reading POIs from the memory card. Any Ideas
Have you turned custom poi on. Are they gpi files your trying to use. Is the folder directory garmin/poi/poi.gpi or poi file if it has been renamed. as in previous post above is sd card even recognised.
Garmin does not support the newer high speed SDHC card. On my 765T I used a SDHC Class 4 4GB SanDisk without problem, but I understand class 6 or 10 may not work. Check for compatibility with your device.