for a while now for some reason my lg extravert has been changing my background and erasing my ringtones. why is this happening? when i leave my phone alone and i hear it go off whether its a text message or a ringtone its changed. and i notice the background has changed too. and the only way to reset it to what i had it at is to take the battery out and reboot it. and most of the time i have to do it twice sometimes 3 times. how can i fix this? its frustrating cuz i have to go through each and every person one at a time to reset the ringtones. anyone else have this issue?