>I'm curious to learn how you know the error is eliminated yet you don't know what change eliminated the error.
>
>Jim

In my original tests I used to get this error on every second or third attempt. I'm not getting this error at all now no matter how many times I load different files. So, with a big % of certanity I can say that the error has gone. I can not detect what exactly eliminated the error, because I made a lot of changes. The only thing that remains common in the two programs is the business logic, the program flow and table aliases...