This is not funny, and I had the same problem a couple of years ago with the F8 key at that same place. The keyboard was almost new. I tried, retried, kept trying to get it to install on my main machine. Finally, after trying for about ten times, I got rather upset and went to my shop and got another keyboard and put it in. Guess what, F8 key dead on that new keyboard. Therefore, the moral of this story is to try another keyboard before you get any further. That was very frustrating for me and I am sure it is for you.