1) Why haven't I gotten a response from a Dell tech? When I had a problem with the keyboard backlight, I got great service.
2) I ran a free check from your support site. It turned out to be a third-party that wanted money to repair the problems it found. If you are going to offer this "service", please warn us that it requires payment for repair, so we don't waste our time.
Problem number 8: Ran Dell PC Diagnostics: kept getting “A problem has been detected , please try again”.