Could you run "dpkg -S /usr/lib/gtk-2.0/2.10.0/engines/libbluecurve.so"? The backtrace show it's trying to open that file which is not shipping on a standard Ubuntu installation, if you are trying to use a binary from an another distribution or lacking that file that's not an Ubuntu bug
-- gnome-theme-manager crashes with redhat-artwork package https://launchpad.net/bugs/80805 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
