I think it may help to understand what is meant by "stereo". Stereo is not the same signal coming from both speakers. More correctly that would be dual mono. Are you just trying to hear the guitar track from both speakers? Or are you trying to create a stereo guitar track? If you just want to hear the guitar in both speakers, you need to convert this track to mono and pan to the center. This will give you that exact same sound in each speaker. If you are trying to create a stereo guitar part you need to first, understand that stereo is two separate sounds from each speaker. This is important to recognize. True stereo cannot come from one track of guitar. Then, do one of the following: 1. create a new track and drag-in the existing guitar region. pan one left, one right. (add a little delay to one to give you a sense of separation); 2. re-record the same guitar part to a new track. the nuances is performance will create very good stereo imaging; or 3. add a plug-in to the original mono track that creates an output stereo effect (like one of the waves chorus effects). My favorite, but it really depends on the song, the part, etc., is to record to separate takes and pan one left and one right (option 2 from above). I hope that gets you started, -Jay