New member here battling the Thunderbolt. Anyone know a fix for this issue. I have no problems sending and receiving mail from my Road Runner account when connected to wi-fi but if I go back to 4G it keeps telling me my server settings are incorrect most notably my e-mail address is not valid. What gives? By the way I let this thing charge all night and 15 minutes off the charger already has me at half charge??? I see this phone may be the death of me.