Graph not updating (1 Viewer)

[simongallop]

Have code that rewrites the feed query for the report so that I have one report per department. All works fine, shows the correct records etc, except that occassionaly the graph shows the values from the sample (design view) rather than the query. Have put code in the OnFormat event of the section containg the graph to refresh the object, which has reduced the number of times it goes wrong, but it is still not perfect!

Any ideas / solutions grateful received