Adwords add confusion

Google Adwords gophers have been in touch to say that my advert has been 'disapproved' because it links to a URL that contravenes their Landing Policy. What this techi bollocks means is that they think the site - which has featured in the same form on the advert for over five years - is infected with Malware. However, having run Google's own diagnostic tool over it, my site is clean (http://google.com/safebrowsing/diagnostic?hl=en-GB&site=http://www.westfieldeditorial.co.uk); moreover, Google hasn't visited that particular URL at all in the last 90 days. Sounds like the new year's getting off to a good start in Google Ad land, doesn't it? Meanwhile, my site is freely available, boring, yet available to visit in complete safety - you are all welcome to point your browsers to it.