I've been getting Error

Object not found! Error 404

trying to get to my email notifications from renderosity that posts have been made by my favorite artists?????
It dawned on me to insert "excalibur." in front of the address and presto it now works!

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ie:

http://www.renderosity.com/mod/gallery/index.php?image_id=1239693

should be

http://excalibur.renderosity.com/mod/gallery/index.php?image_id=1239693

It WORKS!