Google '403 forbidden' message

[Whickerman]

Why has Google suddenly started to ask me to type the text in a box to access Google? Message is a 403 Forbidden, and then tells me Google thinks I'm using an automated search or somesuch. I've run virus and spyware scans - no threats.

[weeal]

Hi there Whickerman

I dont completely understand it but have found an explanation for the error message if its helpful?
http://www.checkupdown.com/status/E403.html

[weeal]

it looks like its saying you have to use the website page-by-page and the error can occur if you jump straight to a particular URL