> Am I doing something wrong (if so what) or is IBX simply bettet than
> IBO when used threaded ?

There's probably a more ideal way to do what you are doing. Perhaps you
could let us know more what you are up to.

IBO tends to be more stable than IBX in multi-threading environments. There
are numerous people who are here in the IBO fold because they couldn't get
IBX stable enough.

Perhaps there is some trade-off in performance for the stability, but my
guess is you are probably doing something in a less than ideal way that
doesn't have anything to do with multi-threading.

Please provide more information. Also, if you could provide a sample app
demonstrating this it would be awesome.

Thanks,
Jason Wharton