Personally, if it's not working but you have a work around, I'd go with the work around, although I would agree with the above comment and not use the NULLS. TMTOWTDI _____________________________________________________ mojobozo word (wûrd)
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OTOH, this could be a symptom of a larger problem which could surface again later, but might not be as easy to find. I suggest figuring out what it going on. Besides, having a better understanding of the code can't hurt, right? :-)