If you can browse the internet on your PDA, internet is OK, as should GSM be.
If you can un-check the "GSM Detect" button please do so and re-test.
If all else fails, reset your PDA. If that still fails, re-install Reperion08, dont forget to delete any leftover Reperion files like positions.log and config.xml (if existing)
We must get you on track !