And note that Jon's original advice was based on the absence of *EGL* support in clutter at the present time. The fact that you can run/not run gnome-shell on desktops with full *GL* support is not relevant. This thread has diverged. GTK3 is not gnome3 is not gnome-shell; EGL is not GL; Sugar is not Gnome. --scott -- ( http://cscott.net )