I know this is wierd, but its a wierd problem. Try deleting the tags one by one and see if there is one particular index that is creating the problem. Some strange stunt with a udf or something may have been pulled, or maybe a function that has changed it behaviour between the two versions may be in use.

>Greetings Erik
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>>Do you get this error with an empty copy of the table?
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>I do indeed...
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>>Or is there a particular piece of data causing it? If it happens when empty, you could e-mail me the table if you want, and I'll see if anything unusual makes itself obvious to me.
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>I may well take you up on that kind offer. But you've given me an idea which I'll check out and report back on first...
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>Ciao
>
>Harry