Thermastat Questions?!?!?

ok i just installed all new OEM thermastat housing with new everything and put the thermastat in the right area with the whole ontop like your suppose to. now heres the kicker im having the needle in the isnt getting to center. its staying on the cold side like hanging above the white box thingy by a hair and it stays like that all the time while i drive home for (20mins) plenty of time get to proper temp. Also i do have the coolant level when cold a little above max. so if any one can help me on this or point me an a direction that would be very thankful.