Help My Husband Accidently Hit Some Button Or Buttons On His Dell Inspiron B12 Laptop And Now All The Screens Are Showing Upside Down. How Do We Get Them Back To Normal?

You could try hitting <Ctrl> <Alt> UP arrow and see if this corrects the screen. Alternatively he should right click the desktop and select 'Properties' and try to navigate to the 'Display' tab and then click 'Advanced'. There should then be an option for inverting the screen.

I hope these instructions are correct because I am giving them from memory cos my XP machine has crashed and I haven't had time to rebuild it.

Please post results.