I've installed slackware 13 and gnome from
http://gnomeslackbuild.org/net-install
When I try to open some folder aplication it look like it's trying to open with cervisia
so far I've noticed that this happens when I open 'home' from places top panel and when I try to "open the containing folder" inside firefox downloads
look's like somewhere in the system I should change cervisia back to nautilus but where?