SSRS 2008 reports with images throw script error with IE9

When i try to load SSRS 2008 report in a browser or a application with browser control on machine which has IE9, it loads the image but throws some script error. I also tried installing the ReportViewer08 SP1.exe, but still i get the error.

The error is "Object doesnt support method or property"

In the script debugger i see debugger stuck at  "this.Poll..." statement.

function anonymous()

{

this.PollResizeImages(oReportDiv, oReportDiv);

}