I have a Dell all-in-one computer in my home office that is about 5 years old, but I have had zero problems with it. We probably only use it a couple of times a week, and a few days ago, my wife went in there and it simply will not turn on (no response at all). I tried a different power cable and that did not work. Has anyone ever had a similar issue? I know that 5 years old is on the older side, and while I don't have issues just buying a new computer, I still want to fix this computer just to ensure there is nothing there that I don't have saved elsewhere. I have Picassa and Dropbox, so I think all of our pictures/videos are safe. Any advice? Call Dell?