Hey, I am fixing a computer for this lady, and she "says" lighting hit it, but I don't know what really happened. Anyways, it's a Dell 4500S and I looked up the manual on it to look at things. I found that the lights in the back tell you whats wrong with the computer when you turn it on. The lights, according the manual, are indicating that my memory is not inserted correctly or it is bad. Could this really be the problem? Those lights wouldn't light up like that for anything else that is wrong would they? I really hope it's just the memory :grinthumb