how to check that a report load is complete?

Hi

Does anyone know of a method or routine that would enable me to check when a report has fully loaded?

I have a form with a report viewer embedded in it. The _Load method of the form sets up the report and loads it into the viewer. I also have another form which needs to show whilst the report is loading and then disappear when the report appears on the report viewer form. I was closing the other form at the end of the _Load method of the reportviewer form but this is too soon as the other form is closed before the report appears.

Any suggestions would be greatly appreciated!