bluetooth dial up networking vanished c500

[Guest bod001]

Help........ I setup my ipaq 1940 to connect to internet using my c500 and the bluetooth gprs connection a couple weeks ago with no problems. It was working great, i could receive email and browse the net with no probs until today when i tried to connect.

It will not connect to the dial up networking bluetooth service, in fact as far as my pc and ipaq are concerned when i scan for services the dial up networking service does not exist.

I can still send files and activesync using bluetooth just not connect to gprs connection, so basically why cant i discover the dial up networking service on my phone. I have changed no options but where has it gone and can i get it back.....?

Gratefull of any help