I never click on a link from DPS on my site, but today was different. I clicked on TOYS link to: http://www.no-fuss-toys.co.uk/ At the bottom, I see: You must set the "ad_network_ads.txt" file to be writable. You must set the "ad_network_ads.txt" file to be writable. You must set the "ad_network_ads.txt" file to be writable. You must set the "ad_network_ads.txt" file to be writable. My question is that I am dislaying ads for him, but he doesn't show my ads? There isn't any contact information, so I can't email them to help them fix their problem.