Gilly, I'm happy my link helped you but it appears you didnt follow the rest of the advice otherwise the problem would be fixed.
I suggest you follow the advice in the previous reply and also disable any popup blockers you have installed. Google and yahoo toolbars often include such tools.
If none of the previou advice cures it you could just download an alternative browser such as Maxthon at http://www.maxthon.com/

Leicestershire area? Yes/No Yes