Report Viewer And Image Caching

Hi,

I'm having some troubles getting a chart drillthrough to work correctly in the MS Report Viewer. I'm using VB.NET 2.0 in a WebApplication.

Here's what happening:

I build the report with drillthrough functionnality in a chart. When I preview it, or look at it on the report web interface (http://localhost/Reports) it works perfectly. However, once I open it in my WebApplication with the MS' ReportViewer it starts to get ugly.

The report loads the first drillpath correctly. Once I click on a bar to drill to the next drillpath, the report seems to load the data, but the image doesn't represent that as it is the old one. I can tell that the correct data is loaded since the imagemap has changed when I mouseover the chart (links are not on bars, but where they are supposed to be on the second image).

In an attempt to be clearer, here's a step by step:

1- Create the report and the drillthrough functionnality.
2- Preview it in the report builder, works perfectly.
3- Test it in the report manager (http://localhost/Reports), works perfectly.

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4- Load it in the MS' ReportViewer in my WebApplication, the first image in the drillpath loads correctly.
5- Click on the chart to get to the next drillpath, report reload with what seems to be the good data, but the image isn't refreshed.

So, is it possible to force an image to be reloaded with Reporting Services?

Thanks