Hi all, I've rebuilt ORBacus 3.1 with the JThread/C++ and rebuilt the QO codes. I tested the QO without any problems, however, the QO does not use multi-threading. I've installed both ORBacus 3.1 & JTC in, /disk0/grandch/porter/soft/SunOS One must link with "-mt" option and -lposix4. Thanks, Jeff