Reply to MF Pro Help!

Hi

I just got yesterday Sep 29 my MF Pro and it was working all good. The Midi Fighter Utility detected it and it was working fine with traktor and all that.
Today sep 30 I connected it to play a little with traktor and its not doing anything and it doesn't show up the Midi Fighter Utility.
When i connect the MF Pro to the computer it flashes the lights normally like the first time and when I hit a button the light goes on like its suppose.

Can some one help me here?
Or have any idea of whats happening?

Im using it with Traktor (2.1.1) MAC SNOW LEOPARD

Thanks.