PROBLEM
When displaying a Web Mapping Application in Internet Explorer 8, menus containing tasks will be entirely white and the tasks cannot be opened.
This issue applies to Web Mapping Applications built with ArcGIS Server Web ADF for the Microsoft .NET Framework.
This is a known issue with the ASP.NET menu control when it renders in Internet Explorer 8.
Note:
The prerequisite for the patch on Windows XP or Windows Server 2003 is Microsoft .NET Framework 2.0 Service Pack 2 (SP2).
Get help from ArcGIS experts
Download the Esri Support App