I am trying to make a mobile-friendly version of my site. So I created a subdomain for this mobile version and it works, except, I noticed one component is not working (at least so far) using the "subdomain.domain.org" path. However, if I go to the main website using the "domain/subdomain" path it works fine. The subdomain is just a subfolder of the main site. The specific component not working is MSCaptcha. I have .axd refs in the web.config. The MSCaptcha.dll is in the bin. I use the same component on my main site and it works fine there. Should be apples to apples but no cigar. Any ideas?