I’ve been doing some development recently with Visual Studio 2010 Beta 1 and because of this I ran across a bug in .NET 4.0 Beta 1: This cropped up when I decided to introduce logging into my application using the Microsoft Enterprise Library. I soon found out that the current version of the Enterprise Library will not work with .NET 4.0 Beta 1 due to an existing bug. The quick fix to this is to make sure your project is targeting .NET 3.5 SP1, which my project already was. After some more digging around I...