I also have the "a" tag listed in the ACP under site configuration. I am using V 1.2.0.27 on both sites. I upgraded the one where it is not working with the latest cumulative patches, but this did not fix the problem.
The html is simply included in the post. http://concealedpistol.org/viewtopic.php?t=34&p=45#p45
BTW, "Disable html" is not checked when posting the message. What gives?
















