From time to time, I get the Blue Screen of Death. Then, right after I turn the computer back on, I get a black screen. It doesn't get to the Windows page at all. I tried unplugging the computer, taking out the battery, and pressing the start button for several seconds, as I saw a lot of answers like this when searching for help. Now, my screen is flickering green stripes across the webpages I visit. Any help would be appreciated. Thanks.