A follow on from my earlier post regarding reCAPTCHA, it's a stubborn yoke! I spent a good while poking around looking for an answer but got nowhere, I even started from scratch creating fresh keys for the site. No joy, and after a bit of "Googling" for an answer I found a good few Drupal users with the same problem, so my faith was shot down. 

Just a quick note to say I'm working on the problems with the CAPTCHA on the site, this is the box for comments etc. that you have to type what you see to prevent SPAM, ideally I would like to go without it but I get about 500 spam messages a day with it turned off :(

Should be back in action soon but for now comments are disabled.

-Mark

There has been a SERIOUS problem with SPAM on the site lately, the price to pay for being heavily indexed by Google!
 
But the major problem was a few of the register user accounts where spamming the site left, right and centre! So to stop this until I clear out the culprit accounts I have enabled CAPTCHA on user accounts too. (Sorry!)
 
Also I have had to make the CAPTCHA challenge a bit more aggressive, so it may be a bit harder for a short while. But once I sort out all the SPAM things will go back to normal.