transmission problems?

[JMiltier]

ok got a 06 dodge 2500 with a automatic and has been actin weird lately but was just build and has about 2 thousand miles on it. ok from a dead stop it has a fellin of no power but once it goes into 2nd,3rd,od it works great. Also in reverse it feels like it has no power till it gets rolling. it feels real laggy till the turbo spools up. isn't reverse and 1st on the same drum or clutch pack in the transmission. and thoughts of what it may be. its worked perfect the first 1700 or so miles now is acting up.