I access DiS from work, where we have a web filter that blocks access to all social networking sites (incl Facebook). Ever since the Facebook login feature went live, I get an annoying alert (telling me I don't have permission to access Facebook) every time I access DiS. It doesn't block me from viewing DiS, but it does mean I get a pop-up error message on every single page I view, which gets really annoying.
I'm guessing there may be other users with the same problem. It'd be great if you could fix it.