[SOLVED] DDJ-SX no sound coming out

Hi there. First, congrats on the great product. I've been playing with it for a couple of months now, no problems. Until a couple of days ago.

Got a new table at home so i disconnected everything from my computer (including my DDJ-SX) and put it all back together. My controller truned on fine, was recognized by the computer (a Dell Desktop running Windows 8), was recognized by Serato DJ, cross fader to the left, channel 1 loaded, channel 1 fader up, trim up, channel 1 LEDS on, master level up, and no sound... not even the leds on the master level are going on. USB connection is fine. Tried new RCA cable. Latest driver, firmware, software. Terminals and cables are clean. I'm desperate. Anybody???