i received a curve 9350 for work today in the mail. brand new unit from sprint. plugged it in and i get the empty battery image on the screen with a big red "X" that goes through that image. i've googled and it sounds like this means the battery isn't being recognized in the phone. i just have a hard believing this happened with a brand new phone. is it possible this is normal and i need to leave it charging for a day or two?