Help! Tonight, I set up for my gig, turned on the PA60, the display screen lit up and read that it was booting then a blank white screen except for the black lines which separate the function indicators. None of the panel lights go on and nothing on the panel none of the keys respond. From a severe angle, I can see a ghost of some text. Does anyone have any idea what this problem may be and/or any trouble shooting advice. I desperately need to get it working for the weekend gigs. I was able to do tonightís job with my trusty, albeit limited i40M and a midi accordion but I donít think I could get away with it for the weekend work. Any help will be greatly appreciated.