When I run the tests from the comand line I receive the following error from the JIT debugger after the tests run successfully:
"An exception 'System.StackOverflowException' has occurred in nunit-console.exe"
Perhaps this is a problem with my virtual PC, which is running Windows 2003 Server SP1. When I get an opportunity I'll test this out on my home PC and let you know what the results are.
Thanks for your help,
Andy