Not recognizing my 512mb SD card


Why do I keep getting a message stating the memory is full when loading POI to a SD card in my Garmin C340?
Anyone know what to format the SD card to fat16 or fat32?

I think my garmin is not recognizing my 512mb SD card and is trying load everything into internal memory.

C340 SD

The c340 is not able to read POIs from SD card. It can only work with POIs that are loaded into memory inside the GPS via USB cable.

He's a thread with more info, including a response one user received from Garmin:

Loading POIs to the SD on Garmin c340