The backtrace looks like http://bugzilla.gnome.org/show_bug.cgi?id=320020 upstream which should be fixed on feisty, could you try on feisty if you get that problem (maybe with a liveCD)?
** Bug watch added: GNOME Bug Tracker #320020 http://bugzilla.gnome.org/show_bug.cgi?id=320020 ** Also affects: nautilus (upstream) via http://bugzilla.gnome.org/show_bug.cgi?id=320020 Importance: Unknown Status: Unknown -- Browsing EnhancedCD's crashes Nautilus https://launchpad.net/bugs/82488 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
