My computer froze solid

I wouldn't mind betting that I'm the only person in the world that this has ever happend to!

Once in a while my computer just freezes, crashes, surrenders . . . simply refuses to work! The lights are on but there's no one at home; the Esc, Ctrl, Alt. and Delete buttons refuse to co-ooperate and the blank screen just looks back at you.

Just get up and walk away!