stereo sound

[GuillermoOZ]

For some reason, i cannot make my sound play in stereo. Not even the music, anything. Everything comes out of only one channel. I tried different headphones, even in a verizon store where I could here fine through one other display phone, and still only one channel would work on my phone.
I installed the ad2p and the bttoggle and that didn't help. I recently reset the phone to defaults and that did not make it either. Anyone had anything like this happen to them?

G