Ok, So I was on Musicians Friend early this week looking for A VF 160EX. I've been researching this for several months. They had one as a scratch and dent sale for 639 dollars. The advertisement stated that it was in perfect working order. Well, I get it today. Read through the instructions and the startup manual and the screen blinks and fades in and out with out me doing anything. Does anyone have any ideas? Thank you in advance.