Thanks very much Kyle. With your help, I've solved the main problem. I've recovered all that white space on the right for useful information. Now everything seems to work more or less correctly, but I've got another niggling problem. When I go to my Login/logout menu page (for which I used the CB login as the menu item type) I see two identical login boxes one above the other (the bottom one having the title CB login, the top one no title). When I log in, the top one correctly changes to a logout box, but on the bottom, I now get an error message:-
"Error
Session expired or cookies are not enabled in your browser. Please press "reload page" in your browser, and enable cookies in your browser. Please refresh/reload page before filling-in."
Needless to say, cookies are enabled and I've reloaded the page.
Do you know what's going on. I've tried everything I can think of.
Thanks again.