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Liquid Crystal Display (LCD) screens use less energy and display a clearer picture than the Cathode Ray Tube (CRT) displays that preceded them. These new LCD screens now dominate the computer monitor market. From time to time, however, pixels can become stuck and a green line can display on the screen. Removing this line is sometimes possible without sending the screen to the manufacturer for expensive repair.
From the Acer web site:
"Cracked LCD displays are not covered under the normal warranties and should be serviced through our out-of-warranty process." I would suggest you just buy another LCD. I recently bought one, new, on sale for less than $100. If this answers your question, I'd appreciate 4 thumbs. I do this for fun and do not get paid. Jim
We can find out if its the Video card if you have a monitor around. There should be a VGA plug on the back of your laptop if you plug that in and turn on the PC. If you still don't see anything onscreen try pressing <FN> + and <F5> together to swap displays. If theres no display after that then you do likely have a faulty video card. If you do git a picture on the external monitor, try the display swap key combination a couple of times and see if the LCD screen comes on. If not you likely have a faulty LCD screen or a backlight that has gone bad.
If the Notebook has faulty components I would recommend taking it to a certified repair facility. In the US I know Best buy and Circuit City are authorized repair facilities.
Hope this helps