I'm getting that message together with URL not found when trying to log in to yahoo mail.

ISP problem? Any ideas?

are you clicking on a shortcut tab in the browser? or a desktop icon?

What happens if you simply browse directlty to Yahoo! UK (http://www.yahoo.co.uk?)

Clicking a bookmark, but got there using that link. Went back to Opera and it's still showing the above (I use FF on pprune).

So maybe Opera playing up?

More likely the bookmark is corrupt
Delete it and create another

How right you are !

Thanks.