I know I'm missing something obvious here. I'm recording a guitar by micing my amp and coming into my 002 with Pro Tools 6.9.2. I'm getting a feed through my mic and everything is coming into Pro Tools just fine. I can monitor my sound when I'm not playing back but as soon as I start playback my signal disappears. I can't hear it nor can I record it. The problem started literally less than 5 minutes after I recorded a guitar part the same exact way. It strikes me as very odd, any help would be great, thanks!