So here's what I posted:
Some text
http://www.roleplayinggames.net
http://www.roleplayinggames.net/bugs
And here's what I got:
Some text
http://www.roleplayinggames.net/bugs
before it. What's interesting is the
tag and the links are now working again. So I either need to adjust the regex for the URLs in messagethread.pl, or maybe you can adjust the RTE so it does not insert erroneous HTML?