Chart Displays Sample Data Intermittently

[DanR]

I have a report written in access 2007 that has reports that display tabular
information, and a chart that summarizes this data. My users run this report
from a runtime version of Access 2007, and intermittently experience a
situation where the chart displays the sample data and not the actual data
from the query that should be refreshing it. This occurrs very rarely, and I
cannot duplicate it, so it is difficult to debug. Do you have any advice?

Thanks,
Dan