Strange characters/text when installing PHPBB3 forum

I am trying to install a PHPBB3 forum, and get strange characters/text after the install on certain pages - everything seems to install correc开发者_C百科tly though...no errors from the installer.. :(

Originally it only appeared on the "new topic" or "post a reply" pages, but now it is appearing in various different places!

Any help would be great, thanks in advance!

Screenshot 2 http://img408.imageshack.us/img408/9343/screenshot1fv.png

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It looks like its a problem with the custom/modified style you are using. Try changing the style back to the default styles or downloading an up-to-date style from phpbb.com.

I'm sure as soon you change the style the text wont appear. (make sure to clear the cache in the Administration Control Panel when you have made the change)