Lights don't blink but there is a light showing that the keyboard is powered. It is an older keyboard, so it doesn't use USB. I did try hitting delete over and over. I'm starting to wonder if maybe I need to try a different keyboard (though this one did work before.) I don't have a USB keyboard here right now though. Thing is, I'd like to make sure I have a functioning keyboard because if I start the OS install, I'll probably need it at some point, eh?