I have a remote sql reporting services report that I am viewing on an asp.net page using the reportviewer control. Everything works fine in debugger mode during development. On our production server the report comes in fine, but the print button doesn't work. It looks like it is doing a post back after clicking...but no print dialog box appears. Also when trying to export to a file type a new IE window is opened with this error: "ASP.NET session has expired". Both these options work in development mode using the VS2005 debugger. Anyone have any idea why this might be happenin in production only.