Did you select "Update_to_GTK2" in the MyDSL menu after loading the gtk2-0705.dsl or gtk-0705.unc extension before you tried to run a GTK2 application?
No because I don't see any Update_to_Gtk2 in the mydsl menu. Where should it appear ?I've retried to re-install the gtk2 package, however from 10 minutes now the dsl menu is all grey with no buttons.I think you misunderstood the meaning of "MyDSL menu". You were apparently opening the MyDSL tool and looking there for "Update_to_Gtk2". Those items are for selecting applications to install. The "MyDSL menu" menu that was mentioned is a submenu within the Fluxbox or Jwm applications menu (right-click on the desktop) where MyDSL applications show up after they have been installed.
developer suggestion: It might be useful to include a temporary desktop icon with the Gtk2 package, for those who are not accustomed to the Fluxbox/Jwm menu. This icon would do the same as the menu item, but perhaps remove itself after Gtk2 has been enabled.That is fine I finnally found it.
I finnally found it.