No, blame Norton Internet Security. Don't remember how, but you have to configure NIS that either all sites are permitted to sent data or only certain websites (like amiga.org, amigaworld.net, ann.lu, morphzone.org etc etc) are alowed to sent data to the server. It depends a bit on the server / forum software used. (Edit; Maybe ann.lu does work with NIS, not sure, but most/all xoops sites won't IIRC)
How to configure NIS depends on the version (AFAIK NIS 2003 does it different then NIS 2004).