Installing and upgrading help

The update command on my moodle 1.5 stable, suddendly wouldn't work, aborting with a "no route to host" error.
Peeking on a new installation, I found that the root file had changed from
:pserver:anonymous@cvs.sourceforge.net:/cvsroot/moodle
to
:pserver:anonymous@moodle.cvs.sourceforge.net:/cvsroot/moodle

I changed it accordingly on my site, and the client was able to connect to the repository again and started updating.

The site was upgraded from 5.3 to 5.4

However, when reaching the update of "userpix", it aborted again with the "no route to host" error.
I did modify the root file in the userpx/cvs directory, but it did not help...


I see in the new installation that the only file in the userpix directory hasn't changed since my last successful update, so it should be no problem for now. But could in the future.

Any hint?
Thanks,
Piersante