Hi,
First thing first, I really recommend a hard reset on your device. As far as I remember, it could restore GPS settings. After, you can try Find GPS tool in ArcPad to find and connect your GPS in ArcPad. I haven't seen AP 10 yet, but in previous version the tool can be found here: in drop-down list below GPS Active icon/ GPS Preferences/ GPS Tab (1st). You should press the black spy-glass icon to automatically find and connect. I hope ESRI left this feature in AP 10... 😄
If it doesn't work, you can follow the "official" way - what your user guide says:
- Lanuch GPS Controller on your device and Enable NMEA output in Settings. Set output port to COM2 and baud rate to 4800. (However it is set default on your device, because GeoExplorer 2008 series has 2 ports for outputting data: COM2 for NMEA, COM3 for TSIP.) Than go back to AP 10 and set the same settings for GPS or use Find GPS again.
Either way should work...
And don't forget to check Protocol as well! If you set Port and Baud rate settings right, but you leave the protocol on wrong, it won't work! Set it to NMEA. (If you use Find GPS tool, it sets everything for you.)
Hope this helps. 🙂
Zoltan