If it suddenly seems that your computer is running real slow and the drive light is flickering like crazy (geek speak = “thrashing”), you can correct the problem by installing more memory. And, for most systems it’s not that hard. So, before you tear down your system, unplug the cables, lug the machine to the car, drive to the computer store, wait to have RAM installed, and pay for the service—read Microsoft At Home’s article entitled, “Add More Memory to Your Computer” on how to install it yourself.