1. As for V7.2, did you apply the latest FixPack? (fp7 is the latest )
If the answer is no , then I reccomend to apply it .
2. If you're using com/com+ , please check transaction properties of the
program. ( which you can see from "Component Services " of the windows control panel.)
I think you cannot use "transaction" if you set this property to "none" ( which is the default") , although it's the matter of COM+, not DB2.