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>something in report is wrong so Your suggestion didn't works either. I rename field Val to GoodVal not to be a reserver word. Did all You sugges but no luck. I delete report and recreate it and Voila :o))) all works. Unfortunately I can't see what causes the problem. I open old Report as a table take a look in all records and can't see anything suspissios. Is there any way to post the report here so somebody may be could see waht causes the problem?

You can zip up report and some data to run it and email to me.