BlueSky - 4:27 am on Oct 30, 2003 (gmt 0)

That entry shouldn't affect Googlebot because he and Googlebot-Image are two different bots.

If you cannot find a problem in your robots.txt, then I recommend you write to the company at googlebot@google.com . Send them a copy of the entries in your logs showing where he did not follow your robots.txt directives plus the URL of your site. They'll check out what happened with their bot.