i had the same problem with my acer 4315 just 6 moths old from new. at first i had thought that it was the screen. but it turned out to be defective mother board and contact points for the lcd screen. that is going to cost me usd250+ to get fix around here. so its now a door stopper. i am currently using a dell and i swear i wont even go near another acer product! good luck.
My Westinghouse LCD Monitor has started giving me a black screen..the model # L2046NV the green...
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My Westinghouse LCD Monitor has started giving me a black screen..the model # L2046NV the green power light is on and when I turn it off and back on again it shows the screen for a few seconds then goes black again