Precompiled Website with Sitecore

If you are using a Web Deployment Project to precompile a .NET website that is run by Sitecore, you must check the "Allow this precompiled site to be updateable" checkbox on the WDP property pages or you will get an error when trying to access the Sitecore desktop.  The error will tell you something to the effect of "The file '/sitecore/default.aspx' has not been pre-compiled, and cannot be requested"