www.boxertrix.com

When in map source click on "file" and open the route you have saved, then click on the SP3 icon with the down arrow and it should search for the device and find it if connected to the serial port

you may need to install a "driver" for the spIII if using the rs232 (serial ) port. check in device manager whilst the spIII unit is connected & switched on, if you have a yellow question or exclaimation mark, then the unit is not correctly configured (installed). if this is the case, the unit must have the driver installed before it can transmit data to /from the unit. the fact that your pc can see the unit via the usb port is irrelevant as serial port architecture is ancient tech by comparison.

having said that, I've never tried to use such a device via rs232, so I may be talking complete b****cks

Steve

Bob

The following comment was posted on the UK GS site in reply to the same problem

Quote
Maps you download to the memory card in the USB-programmer.

Waypoints, routes and tracks you dowload to the SP3 over the serial cable.
Quote

Hope this helps.

Steve

Thanks Guys will try this out when I get home tonight.

Bob

When you click "Send to device" in MapSource, the drop-down list should show the SP3 as one of the options (and/or the datacard programmer if you have that plugged in too). If not, you need to make sure your serial port is enabled (should be listed in the Windows Control Panel), and your GPS is switched on at the time.

As far as I know, the only drivers supplied are for the USB programmer; the serial port should work without anything extra.

Yipeee it now works I have waypoints.

Turns out the puter was fine the SP3 was set to Garmin DGPS in interface menu and should be set to just GARMIN.

Deep joy

Sad 20 minute call to Garmin in the USA