I recently had all my entries disappear from this blog.  After reading about the problem at dasblog.us I extended the session timeout on the site.  It looks to me like the session expired during a lengthy editing session, and left the system in an unstable state.  I had to upload a new version of web.config to get my content to display once more. 

This entry was created using Widows Live Writer, which writes directly to the site and will avoid any session timeouts.