I am trying to make a recording on my DP-02 using my electric Gretsch guitar. I am getting no sound other than humming through my headphones. The level indicators show that the machine is getting sound. I did not have this problem with an acoustic electric and was able to complete a song but the electric is only giving me a buzzing noise and no guitar sound through my headphones. I am plugged directly into input one with the line mic button switched to guitar. I would really appreciate anybody's help with this issue. I'm trying to complete a recording and submit it to CD Baby. Thank you so much.