I have been having problems with this phone more and more frequently... the most recent problem is after a while in the mornings my phone will pop up a message saying the Sim card has been removed and to restart the device so search for a new Sim card... is there something I can do about this or is it just a bug I have to deal with? I don't have a problem with it restarting once in a while but I'm afraid I'm going to need it one day and it will say no card found...