I've already seen that. That's how I got here.

I'm not sure why you thought that would help me. It brings me here, where I asked the question, for you to direct me back there.

And as I wrote I'm not good at these things so half the things on that page talking about the virius I don't understand.

My computer seems fine now. I ran Norton Anti-Virius, and Ad-Aware a few times. Once the computer was turned on for the day today it has been fine and ctrl+alt+delete are working now.
My music volume isn't showing on the screen but I doubt that has anything to do with this.