OK, after more than a day of messing about with this I’ve sorted this out and am posting this reponse in case it helps anyone else.
The problem was that I had used a theme that was Google adsense enabled. In other words the author had included a java script to show google adverts above any comments left on a post. If you have an account then fine, you can show your ads, if not heres what I did:
Opened the Comments php page in notepad and found the two Javascripts. Deleted both and reloaded the page. Problem solved.
I hope this helps someone.
Cheers!
