Mitre: The 3G network in the uk is crap to be honest. You will probably find that you live in a " fringe area" equidistant between two transmitters, one 3g & one 2g. The handset cant decide which one is the stronger signal so keeps switching.
Ive not had a lot to do with these handsets, but some do have an idle timeout. If you pm me your postcode and mobile number ill check the network for you to see what its doing.






