how do i get the input to quit maxing out? the record meters always shoot off the chart and it ends up sounding like shit. i already have my guitar volume turned down low, as well as the input on the tascam interface. do i need to change something on the actual program?

also, can i do anything about radio interference? when i'm not playing anything on my guitar, i pick up some radio station (i think the one behind my house) almost completely clear