Another Problem Wit Edge.....maybe

[jackster06Z71]

After I updated with the Eec2200 my trans started slamming into second gear, and I mean it shifts hard, it snaps my head back!!! This was in extreme mode , i was running the economy after the update. Then i swicthed to the extreme mode and ran one zero to sixty and after that it shifts hard in to second! Now i have returned it to stock and it still shifts hard , but not always is comes and goes. so im confused , so i pulled the programmer out of the truck and having my dad take it to work with him tuesday since he works at the dealership. anyone else experience hard shifting after this update, also my check enging light is on now, idk if this is the edge , or maybe i just have a tranny prob at 4200 miles idk anyone else having any similar probs???? thanks Jackster