Dreamweaver MX extension fix for .NET framework version 1.1 For Windows only, this patch fixes an issue with the rendering of built-in ASP.NET controls that arises after installing version 1.1 (or greater) of the ASP.NET Framework. The default MM.ASPNetDesignerMgr.dll file is replaced with an updated version that has been tested with Dreamweaver MX 6.1.
Download the extension patch (8 KB) for Windows. For more information, read the TechNote.
Hope this helps some. I just found it a few hours ago myself crusin' through the MM newsgroup.