I'm still posting from the library.

My friend popped round last night to have a quick look at the computer. It's good news - my hard drive hasn't failed! It seems that I've somehow downloaded a virus that's corrupted one of my files...obviously a very important one. The most likely source would be the last site I visited; a U.S. Radio Station. My friend was unable to remove the virus and repair my system though.

He'll have another go at the weekend; if it can't be removed the entire operating system and all my software will have to be re-installed.