Good grief! I don't know how I did it, but I certainly have done it. I thought it was bad in Firefox, but mein gott! Look at it in Internet Explorer - now that's how you kick out a sidebar.
I'd like to call this a learning curve, but all I've learnt is to be veeeeery wary of the font options!
I expect I'll get a nice new page in November, and I'll try not to break it......... :(