Hi, all of our tasks are signalling, so when they are completed process execution is continued. What is interesting here is that we are almost certain that the task has not been 'submitted', yet a subsequent task has also been created and is in the 'not started' state simultaneously. Thanks for the pointer though. Any other ideas ? Regards Ross View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4149099#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...