Hallo every one, recently I started getting very interested in global positioning. That's why I got a Nav4All gps device. I also have a sony-ericsson k750i and that's where my problem starts. I tried a gazzzilion times to download the software, but every time it shows some message that the gprs settings are invalid and the phone blinks a few times and goes to the mp3 player. The funny thing is that when I tried to install the same software on Nokia 3230 it worked perfectly. Any ideas?