I bought an Aspire One from John Lewis in September 08 with a two year warranty, and a couple of weeks ago, all I got was a blank screen. I guessed it was a BIOS problem but as it was under warranty, I asked JL to send it back to Acer for me. Yesterday, it came back, but now, when I boot up, there's no fan noise, and when it gets to the desktop page, it just shuts down automatically. I guss this is an overheating problem so it has gone back to Acer again. Has anyone else experienced this problem. The machine has ben working normally for the first year.