>This code looks fine to me. It is very similar to what my own ADDID() procedure does. If there are other stored procedures running from triggers or default values, I would be much more suspicious of those...

That was the only stored procedure I had in the DBC, there wasn't even any RI code. But, someone mentioned that their problem only happened in development, not in runtime... I never tested mine for that, but if it works fine in runtime, I can live with that.