Hi, I recently installed Cakewalk's Sonar 2.0 XL but I am having trouble using Revalver. Can I only use revalver on a midi track, b/c when i set it to audio - and i click input it only shows 'revalver output' and i can't record. Basically, do I have to plug my guitar into my line and record on midi to use Revalver? Can't I use the line in and use the audio track and use Revalver? P.S - what does midi omni mean - i just want to record my guitar into my computer - do I have to worry about midi channels and other midi stuff?