Yooo guys i need some help...I just bought a numark n4 but it didnt come with any of the software cd's that it was suppose to...i already have virtual dj pro and wasnt worried till i found out my cueing isnt working. I have sound in my headphones when my mix is on master but when i turn it to cue i lose sound. Is it a software issue?? sound card issue?? Any advice would be awesome. thanks