I found the use of CVS somewhat opaque until I read "The Importance of Branching Models in SCM" pp 31-38 Sept. 2002, IEEE Computer. Also, CVS Best Practices by Vivek Venugopalan http://ldp.us.themoes.org/REF/CVS-BestPractices/html/ Now we have nightly builds (and run unit tests) in our integration directory. Very nice. Mark