Re the problem reported a couple weeks back by Jorge Jimenez and confirmed by myself, I tested 1.5.4 to see if they had fixed this problem, but it's still there. Just set max-instances to 1 and load up with a lot of messages, it works just like a stack. Doh.
Maybe I'll have time to put this into Bugzilla next week... Is _everyone_ using a third party JMS with Orion? geoff