Monitor flashing on and off constantly

lollypop6636, As long as the LCD panel has not been damaged or scratched or abused, then you should first try to find out if Viewsonic has a Refurbished monitor swapout program. You ship them your's + $50-$90 and they return a same model like new Refurbished unit with 30 day warranty. The symptom of a flashing screen leads me to think that the units power supply is having a very hard time keeping the two long, thin, "cold-cathode-fluorescent-tubes" lit up. They provide raw WHITE LIGHT so you can see the text, graphics,pictures and everything else that you see! The CCFT lamps are driven by what is known as an "electronic ballast circuit" !! They along with the other power supply(SMPS) are prone to failure. Another name for the ballast is INVERTER circuit. Your dealing with a technology similar to the new screw-in curlieQ energy-saving light bulbs whose ballast resides inside the oversize base of the bulb!! Anyway, if you can't do a swapout, You can check with the store where you purchased the monitor and see if they can be of some help. Also checkout youtube for video clips that show typical LCD monitor disassembly. the ones that are over 8 min long will be intersting and informative. Get backto me via email if you need more info. I hope thi has been helpful. bye for now lmistyrel@aim