Greetings all, I've searched the forum before posting this issue, but I couldn't seem to find the exact issue that I'm having. I've had my Galaxy S2 for about a week now, and whenever I am at work and the signal is low it displays the message "Emergency Calls Only/Unregistered SIM". Is this a result of the phone's inability to find a decent signal and an attempt to save power? Just a bit of a pain in the butt to reboot the phone every time this comes up, unless there is another solution. Thoughts? Suggestions? Thanks!