Thank you for your response. The problem isn’t after I’m done recording (after recording I can manipulate the track to play mono and it comes out both headphones), it’s while I’m recording that I can only hear myself through the left headphone. I am able to hear the music in both headphones but not the recording. I also failed to mention that this problem occurred when I upgraded from Acid Pro 8 to Acid Pro 9. When I was using Acid Pro 8, I didn’t have this problem. I’m sure it’s some setting in the software but I can seem to figure it out.