Had the unit a week, been falling in love with it a little more every day. This evening switched it on and on startup it fails to boot. I get   SS = Scribble Strip SS1 = Line 6 Logo SS2 = HX EFFECTS SS3 = Firmware Version 2.50.0 SS4 = Blank SS5 = Boot Failure: res = -28 SS6 = DSP Init   Just stops there. Afraid to init in case I love the presets I've built over the past two days but havent backed up.   Anyone else seen this?