I bought the Holux GPSlim240 Bluetooth GPS Receiver. I followed the instructions on Nav4All - Free gps navigation for your mobile phone!
and installed the software on my bb8100. Now when i try to set the default language and default audio, I get an error message 'No GPRS'. But I do have the data plan and internet enabled. I am with T-Mobile. I even tried the customer care but not much of help. Can anyone help me out.