Gearhead
On your track at the extreme left of the Project window, please check what the output of the channel is. If I put this at "ASIO Multimedia Driver Stereo Out" in my SX3 it outputs through both channels. In the Mixer window, right on top of the fader but below the narrow/wide button, you should be able to find a R/L horizontal fader showing as a vertical little line on a dark grey pane, the line being yellow or blue depending on the status.
