Hi, I just bought a new ddj-t1 a few days ago. I did not install the software that came with it as i already own a legitimate copy of Traktor pro 2. I installed the drivers and started using it with traktor and everything works fine 100%; I love the mixer! The only problem is when i use the mixer to play music from windows media player or when i use it with Fl studio, I have no control over the volume output whatsoever. Even if i turn down all the channel gains, faders and main vol to 0, the sound still comes out from my speakers at full blast. I own a amercian audio vms4 and i can play music from windows media player and fl studio while having control over the volume and Eq before it goes to the speakers.