Hey please help, first the Cab (original not the new cab m ) when turning nob to change cab would jump from user preset 1 to 78 to 35 to whatever so would only work if plug into pc and set from there and all good as long as i dont touch anything on the pedal. Now when power up just a blue screen and nothing more. Tried multipul power methods from original one to strymon power block set at 12volts. So is it safe to say the pedal is dead? its over 5 years now and has had heavy use. Its it time to buy the new cab m.