So my wife bought a Dell XPS back in 2007, top of the line at the time. It had two hard-drive failures, and a network card and bluetooth die, so Dell replaced the entire thing since she also bought the extended service warranty. A couple months ago, out of the blue, my logitech wireless mouse just stopped working. Whenever it's plugged in, Windows just spammed a device not recognized error. We bitched to dell, and they sent a service tech out to our house and replaced the motherboard on the new laptop, because it appeared to be a USB host-controller failure. We tried plugging it in again, and same thing. So I formatted, and put a clean install of Windows on, and same thing. I contacted logitech, but they said it must be an issue with our computer, because the mouse works on another laptop that has XP on it, but Dell refuses to do anything because they said they've already fixed the issue by replacing the mobo. So wth, is it the mouse, or the computer? Who do I complain to next?