Have you tried upping the Tomcat memory settings? It could be that JForum is just using up the last bit of memory that your other applications have left it.
If it's Tomcat under Windoze, you can use the Tomcat Apache Service manager. It's is Linux... check the docs... I think it's changing the daemon start up script to add the stuff to the JVM memory args. [originally posted on jforum.net by monroe]
That's my roommate. He's kinda weird, but he always pays his half of the rent. And he gave me this tiny ad: