Perhaps the CONF.sh should explicitly "unset" variables that are not used rather than just commenting the lines off, so that if it's been set then you later decide to unset it, sourceing the CONF.sh will unset that variable for you ? -- mailto: (Karl M. Hegbloom) karlheg@microsharp.com http://www.microsharp.com phone://USA/WA/360-260-2066 jabber: karlheg@jabber.org