Ditto as above, although upgrading to Android 2.3.5 seems to have helped a little bit. There is no pattern to when the signal boost drops. One minute, the house icon is green, and then next time you look it's red. It doesn't matter if I have a full battery or < 10%. What I've found seems to work most of the time is to switch off handset for around 5 minutes (via soft reboot, not removing battery). This normally results in a green house again. Quite annoying overall - will phone Orange to see if it's the phone.