Summary

On a sporadic basis you may encounter any one of the following errors while rendering reports in Reporter:

Index was outside the bounds of the array.

Object reference not set to an instance of an object.

Fix

The following Reporting Services hotfix resolves this issue:

http://support.microsoft.com/kb/959595

More Information

Install the hotifx on the machine where you run Reporter.

Sarah Henwood | Microsoft SQL Server Escalation Services