Okay I know now what the problem was, you have your links to excalibur.renderosity.com and not www.renderosity.com..  Members should always link to the www.renderosity.com so if there is a problem with an individual server, your links won't be affected as they are if you link to an indiviudual server like you have with the excalibur.renderosity.com links.

Hope that helps to know for the future