Without a test case, a description of what you tried, a sample input, etc. it's unlikely that any of the 800+ people on this list can offer much help beyond guessing.

On Sat Sep 07 2013 at 11:33:21 PM, Ryan Trullinger <rt83021@gmail.com> wrote:
For some reason I don't get any data on a gpx to meridian sd card conversion. I think I had this problem before but I cannot remember what i did to make it work. Any ideas?