2 out of the 8 people trying to see my drupal site can't see anything. All they see is this page http://www.incredifind.com/index.cfm?action=lookup&pc=fdvdif&Keywords=ht...
where siteurl is replaced by my site's url.

Has anyone experienced or heard this before? The people who reach this page have no trouble accessing all other parts of the domain, including php driven content of forums etc.