That's what it was! And no - you don't need exclusive use of that table to add the indexes.

>>It may be the 'buffermode'....(???) or something like that...seems like I've run across something similar myself, but it was more than a year ago....
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>You've got to set the buffermode to row buffering first than index than back to table buffering but I believe we ran into a problem with this particular index. Let me test it and get back to you on that one. Don't you have to get exclusive use of a table before you can add any indexes?