Hey guys I just purchased a 15" MacbookPro 2.33 ghz but I am having problem since I opened it up. There is an X over the batter icon on top and when you click on it, it says no batteries available. I also cant you use the laptop if is not plugged in. Also the light on the charger is always green, it has never turned orange or anything. Have any of you guys have the same problem?