I have a new ipad 16gb wifi 3g,only had it a week,this is the first time i have had to recharge since i first got it,when i synced it it said "not charging" so i plugged it in the wall still the same thing not charging,i powered it off,even reset,nothing,what could be causing this? i jailbroke it so if i restore i'll lose that.Does anyone have any suggestions?