Reply to S4 Will Play Through Master but Wont Control Traktor

I recently purchased a used but in perfect working condition S4, I saw it function properly in the store before i bought it and it worked fine. I brought it home downloaded all the latest drivers, and made sure i had free usb midi driver room in my registry. When i connect the controller i get the usual light show and conformation sound, but when i open Traktor Pro 2.5, it will not recognize the S4 as a in or out port and it receives no midi signal but when i drag a track to a deck and play it the sound comes out of Traktors main out still. Does any one have any idea why i can not control the software but the audio still comes out of the main? Any help would be awwwesome.
Thanks in advance.