Controls... help or sliders..

when i play the cavaliers, lebron james can't dunk even jamario moon those two are highflyers.. what should i do.? how do i perform a dunk is it speed + shoot button? IN PC VERSION.. PLSSS help me so that i can enjoy playing 2k10..

Same here I am having a problem using my keyboard as my controller but I have some plans buying my own game controllers just for NBA 2k10 because I really love this game so Cool...