I have an Acer AL2017 20inch. As of recent the

I have an Acer AL2017 20inch. I am running Windows XP.As of recent the moniter will come on briefly just long enough to show the Acer screen as a 1 second flicker as the computer is booting up and then back to black when the computer is loaded up to my desktop page. I contacted Acer who told myself the F8 trick on comp bootup but it makes it a bit difficult to see what the options are when the moniter won't display anything but a black screen. However if I turn my system off using the power button on the front to put it into hibernate mode and turn it on again and press the F8 key the moniter again will show the picture I am used to seeing for the last 3 years. Any suggestions on how to fix this problem excluding the use of power button hibernate mode and F8 clicking?