Hi there: The purpose of the referrer check is mainly to check the legitimacy of the poster, and protect your board from spamming bots, etc. There's no security threat, per se, in disabling it, but I'm not sure about what you could have users do to troubleshoot the problem on their firewalls... Let me see if I can gain some insight on that for you. <img src="https://www.ubbcentral.com/boards/images/graemlins/smile.gif" alt="" />
