I have a Variax 300, 700 electric and acoustic, with PodXT.   Love 'em all, but lately...

My Variax 700 electric has down with a buzz on one string (low E).    It's definitely not the string, but rather the guitar's translation of the string sound.

Has anyone ever encountered a Variax "software buzz" and is there any solution other than never playing quiet and low?   (Which, uh, I guess I don't do much of that anyway ;-)

Love to get this fixed - I've tried doing a firmware update with no change.     I've also taken the back plate off and wiggled the ribbon cable - seems fine.    

Thanks much!

Jim