[Boa Constr] n-th question about CVS

[Luca <luc...@ya...>]

Hi everyone,
I really can't access to CVS repository. I followed the instruction provided 
by Sourceforge, i.e.
	cvs -d:pserver:ano...@cv...:/cvsroot/boa-constructor login
	(press enter when asked for password)
but every time I get either
	cvs [login aborted]: end of file from server
with no other message, or
	cvs checkout: CVSROOT must be an absolute pathname (not `')
	cvs checkout: when using local access method
and then login fails.
I run cvs from boa-constructor directory in my machine.
Can anyone help?