I've been having a very odd problem for the past week or so. I have flashed a new ROM (was running stock VD earlier) and the problem remains, so I think I can rule out a weird issue with the software. About once a day or so my phone will randomly disconnect from the mobile network. If I go into settings the checkmark is still there and it says it is connected under phone status, but the 3g icon in the status bar is missing. I usually notice this when I try to send a text and get a failed text message error only to look up and see the 3g icon is gone. The only fix I have found is rebooting the phone or turning airplane mode on then off and then the 3g icon appears and I can once again send/receive sms. Any ideas?