As my latest Guardian piece shows. [Update: or at least did until the web site team kindly fixed things!]

Where it says "a Launch button in the lower right mimics Windows XP's Start menu" , it should read "a Launch button in the lower left mimics Windows XP's Start menu".

Ooops.

But then, I am the person who once fell down the stairs in the middle of the night when I couldn't remember which side of a door the bathroom light switch was. And it was a house I'd lived in for a year or so...