If it's one of the series with GMA graphics ask the owner if they changed the RAM.
If not, my bet is it's another mainboard. Details are missing as this is a series so I'll write you as the tech would check that the heatsinks are still on tight.
I was brought this laptop and told that an infant stepped on it.
On boot-up, the screen show colored vertical and horizontal cross hatch lines and will not go past the ACER splash. I am hoping for some suggestions. I do have a Youtube video of me booting it up at http://youtu.be/3vkhieb0nDk
Please check it out and tell me what you think. I am sure I will have to break it down. I am open for things to check once I get that far.