hey guys i have a 99 ram 2500 v10 4x4 with an automatic. im having trouble with the tranny shifting out of 1st gear. it starts out in first just fine but you have to let off to get it to shift into second and then if you hit the gas too hard it just downshifts into first again, other than that the tranny works fine anyone know what the problem is and how much it will cost to repair or if i can do it myself?

Tom