I don't really know how to describe it, but my computer screen sometimes sort of "peels" down...like it disappears really slowly from top to bottom. Usually happens when I close out an Internet screen. Also sometimes happens when I turn on the computer and click on an icon. All of the shortcuts with disappear, the screen will be blank (besides the wallpaper) for a few seconds, then they slowly reappear from top to bottom. Lately, I've been getting a little alert about low virtual memory. It says Windows is fixing the problem, but it's happened 2 or 3 times over the past week or so. I checked the drive and I have at least 60% free space, but I ran Disk Clean-Up anyway. The alert happened again, so I changed my virtual-memory settings to System managed size options (found that advice here: http://www.pcmag.com/article2/0,1895,2089076,00.asp ) but the alert has happened AGAIN. I don't know what to do. Help? I don't know if it matters, but: I don't think it needs to be defragged. I did that about two weeks ago. I just ran the analyzer and it says it doesn't need a defrag. I have Spyware Doctor and Ad-Aware, which I run about twice a week.