hudson with NAnt - build file access

Question

Hi, I'm new to all this. I have installed Hudson with the NAnt plugins on my box running MS Server 2008. My first test project is to run a build on one of the NAnt-0.85 example builds (Simple.build). This continually fails with console error message:

Error loading buildfile. Access to the path 'C:\Users\xxx\nant-0.85\nant-0.85\examples\Simple' is denied.

What I've tried ====>

1. I can build the same 'Simple.build' successfully from the command line.

2. Hudson runs as user "anonymous". I have given this user "full control" over the conaining directory.

Is there anything I'm obviously missing? I configured this project for source control management using Subversion but the test target is not in the repository.

Thanks.