hi i just got this droid 2 global last tuesday and today i noticed a ? in the battery indicator today. thinking it was odd i turned off and pulled battery, then put it back in. still there. when i put in the charger it tells me battery is not compatible with the phone. i switched batteries with my gf droid 2 global and the battery worked fine with hers, but her battery when put in mine still showed the ? in the indicator....plz help