Hi - I used GSAK to send a file to my new Oregon 450. I noticed the file had been saved on the hard drive of the GPSr. So I opened the SD card drive, and dragged the file over. Now when I turn on the GPSr and say "Find Geocaches" it states that there are none on the GPSr. So it is not hunting in the SD card for the files. How do I make it do that?