There are cases when you don't want Netbeans to add files automatically to CVS for you.
To change that behaviour folow these steps (Netbeans 6.8):
1. Go to Tools->Options->Miscellaneous->CVS
2. Check "Apply "Exclude From Commit" On New Files Automatically" option
Now all your news files added by you need a "boss" approval to be commited.
This is handy when you don't want project's (private & meta) files to be imported.