Basically, i have had this problem for a while now. I have an Orange branded Desire and i'm having problems with the mobile network. Getting to the point, sometimes the mobile network doesnt turn on even where theres signal (full bars). For example i will turn on the mobile network on (through settings) and then it will be working fine. Ill leave it on whilst at work, and then when i come back a couple of hours later, the 3G/ Edge (whatver) signal is off and the mobile network isnt on. Even when i try and turn it on it doesnt work, unless i go on to airplane mode and put it on through there or turn the whole phone off and put it back on. Sometimes ill leave the mobile network on throughout the whole day and it will still turn off by itself sometimes and then ill have to put it back on. Is it a common problem? If the 2.2 update fixes the problem then, im prepared to wait as i have already had my Desire exchanged before, because of dropping calls. I dont no if i should return it back to Orange. HELP!!!!!