FYI one of the best links to do with trust levels

<http://msdn2.microsoft.com/en-us/library/ms998326.aspx>

 During the setup of this blog (BlogEngine.Net, which is awesome BTW) I ran into a small snag. The hosting comapny could not run this blog with high trust set. So as I was a little rusty on what the difference between High and Medium (which is what this is now running at) I googled away. The above link contains all the details between all the levels.

Also if you are experencing the same problem, delete the line in the config file, this will then resort to medium trust (if that is the max the server will allow), which will mean you can run the blog