Beginner question.

I'm new to sonar and fairly new to recording and daw's in general. I'm having a bit of trouble. When I record guitar plugged directly into my interface I can only here the guitar out of my left monitor. Even if I pan it to right it just disappears. Does anyone have an idea why I can't hear it from both. Everything else I do plays both just fine.

Hi Smithsk89.
When you choose the input for the track the you are trying to record on you will be given 3 options for each if the stereo inputs of your sound card. They will be listed as something like "Input 1&2 Left, Input 1&2 Right, Input 1&2 Stereo" for each stereo pair. If you plug your guitar into the first input on your interface for example, you need to choose "Input 1&2, Left" This will give you a centered, mono input that will pan correctly. If you use the second input, you would choose "input 1&2, right". If you have a stereo source such as a keyboard, you would choose "Input 1&2, Stereo".
 
Your interface may also feature zero latency monitoring using its own mixing utility independent of Sonar, but we can't help you with that without more system details.