I've got one that ticks when you're not playing into it... the tick isn't there when I'm playing, but it shows up when the guitar signal fades out. This poses a problem in the studio for me, so I thought I'd see if anyone had encountered this. I don't think it's normal, since my buddy and I bought one the same day and his doesn't do this. I can't figure out where it came from... showed up a few days ago. HELP!