What I do is  this:

 

1.  Create a separate section(group header, page header, etc, it depends on the report) and put a text block with "No Data Found" in the section.

2.  Go to the section expert and click on the button next to "Suppress" (do NOT check the suppress check box.)

3.  Choose a particular field that will always be on the report if there is data.  Set the suppression formula for this section to "Not IsNull({table.not_null_field}).  This will suppress this section if there is data on the report.

4.  You can set the supression formula on all of the other sections to "IsNull({table.not_null_field}) to suppress them when there is no data.

 

-Dell