I bought my laptop last August and it has been trouble free, but about a month ago it began locking up on me if it remains stationary for more than 2,3 Minutes or so. Sometimes I can refresh the page and it will return to life. But many times, nothing happens and when I refresh the page, I get a blank screen. If I have any other windows open, I get the same results. I went to settings to see when it 'goes to sleep', and it is set at 10 minutes when it is plugged in, 5 Minutes for battery power. I rarely use it the battery though, it stays plugged in. The screen locks up after 2,3 Minutes or so and I have to restart the computer. Previously, all I would have to do is hit the spacebar to wake it up and start typing or surfing. I went to history / settings and removed all the cookies, deleted my website history, deleted all the extraneous search engines, and ran a new virus check, but nothing has changed. It's annoying and I have run out of ideas. Any suggestions?