I just got my line 6 pod GX, and I installed all the firmware/software and authorized my computer/the hardware.

So I opened pod farm for the first time just now, and I play my guitar and no sound comes out? I open the tuner and it doesn't do anything?
I selected the GX as my sound card and my headphones are hooked up the the studio GX, and I tested them, they work.

So I tried two different guitars, still no sound? Help?