I must be having a senior moment- I did a gig last night and only the left column of front input 1 LED was lighting up. Is this normal? I honestly can't rember if it's always been this way. If it's not normal and both columns should be registering input signal and lighting up, Where should I look to correct the problem? Axe did sound a little off at the gig last night. Then again, it may be my imagination. Thanks...