All, Has anyone managed to resolve this issue? I've found many references to it on both Struts and Orion mailing lists, with reference to loading resources and classes. Had a play myself with Struts, loading up the classes using different class loader but to no avail. It appears that the problem of loading classes ocurrs when a class is in one jar file and it's parent class (super class) is in another jar (both located in web-inf/lib of course). I've re-opened bug number 389 in Orion's BugZilla (it was nice of them to mark it as resolved). Feel free to vote for it, though it won't let me. In the meantime, it looks like dumping all my jars (for ALL my apps) into ${orion.home}\lib !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! (why won't companies be happy with open source containers like JBoss) Regards, Sean -------------------------------------------------- Dr Sean Radford, MBBS, MSc Senior Consultant Agora Professional Services Ltd [EMAIL PROTECTED] http://www.agora.co.uk -------------------------------------------------- Agora Professional Services is an entrepreneurial consulting firm specialising in e-Business and innovative solutions since 1995.