It is quite possible that hinge joints were wrong implemented - I had only tested wheel and 6D joints so far. You code above won't work anyway because it sets all joint break forces to zero. Can you upload the project or send it to Support? We'll check. If this is about your ragdoll demo, you can also send it to us and we'll convert it to PhysX.
Sweet! I got it converted quite a bit, except for the hinges...
When I get home i'll rar the sources and send it over to support.
Feel free to add it to A8's template (it's setup as header already) if you want

regards,