IBM have a technote http://www-01.ibm.com/support/docview.wss?uid=swg1LO48522
A programming error was found but will not be corrected. It will be a permanent restriction.All well and good, but being the Geek I am' I'd still like to know what the exact cause is. I can make a guess that it's the Inter Process Communications transfer. I wonder if one process is in one ID and another process in a different ID. Just as well they shouldn't talk to each other as it could open a whole can of worms.