Here is how my problem started. I was trying to stop some programs from running on startup, so I did a Run, msconfig, and in the startup tab, dissabled some programs, and I think I dissabled something I shouldn't have, because as soon as I restarted my computer to put my actions into effect, I got a black screen with a blinking cursor.
So now, I am getting a black screen with a blinking cursor in the upper left hand corner of my screen upon boot up. After the windows sign comes up, and loads, it goes to the black screen. While loading, I have 2 options. F2, and F12. F2 is Boot Configuration, or something like that, and F12 is System Configuration. I can access F2, but it isn't much help, but I can't even access F12, the computer just starts to beep, and then goes to the black screen, and nothing happens. If I continue to press F8, the computer will start to beep, and then come up with a black screen that says "keyboard failure." The keyboard is plugged in. If I wait on the "keyboard failure" screen for about 5 minutes, it proceeds to the "safe mode" options. The part that makes my think my keyboard still works is that the lights are on, and I can scroll with the arrows to pick a "safe mode" choice.
I tried restoring the computer to its last known good configuration, but that did not work. I booted in safe mode, and tried a system restore, and that did not work. I unplugged every chord in the back of my computer, and held in the power button for 10 seconds, and then plugged everything back in, and booted up. Everything booted fine, and I was excited, thinking that I fixed it. I shut down and restarted to make sure it was working correctly, and everything was fine, and I could use my keyboard. I shut my computer off, and turned it on again the next day, and it was back to the black screen with the blinking cursor. Can anyone give me some more suggestions to try? Thanks, and sorry this is so long.
Oh, and I have a Dell Dimension 4200. Thanks in advance for any help.