Hi. So, a year ago, maybe December, I spilled water on my Acer Aspire One, and now, when I turn it on, there's this black thin

Solution
Your post cut off since you tried to type it in the title and not the main body, but if you have a line going down your screen, try pushing on the bezel in the area the line is in, that may fix it. Does it go away or get worse if you move the screen back and forth or twist it a little? If nothing external works for a fix, you may have a bad connection or a bad screen. Reseat the connection to the motherboard from the screen, if that does not help, get a new screen.
Your post cut off since you tried to type it in the title and not the main body, but if you have a line going down your screen, try pushing on the bezel in the area the line is in, that may fix it. Does it go away or get worse if you move the screen back and forth or twist it a little? If nothing external works for a fix, you may have a bad connection or a bad screen. Reseat the connection to the motherboard from the screen, if that does not help, get a new screen.
 
Solution