On my new computer, my computer screen scrolls too slow. For instance, say i am on a website that doesn't fit on one screen. I have to scroll down. However, when i scroll down, there appears to be a horizontal line that appears, not some new line, but just a line where the part of the website smushes together. This causes the scrolling to be very slow. This occurs in firefox, IE, and even in normal Windows windows such as the windows folder or program files folder. Any ideas as to why this happens.