I don't want a new motherboard because that will require me to reinstall Windows. The computer I have is a second hand former office PC, and I didn't get a Windows CD with it. Basically, mum's corp gave its employees its old computers instead of throwing them into the trash. This was some 7 years ago or so. Buying new Windows will cost me a kidney, and I'm not confident enough in my computer skills to live comfortably with a pirated OS.