Ok, So after installing GNOME 3.10 I can't see any minimized windows in GNOME 3.4 (GNOME Classic ).

I also got an error before that, saying WnckletFactory::WindowListApplet not found and asked me to delete it or not, and accidentally i clicked on 'delete'.

GNOME 3.10 installation went as follows : # tasksel install gnome-desktop --new-install, I can see GNOME 3.10 UI here.

and #gnome-shell --version gives me GNOME Shell 3.4.2 in both the cases (GNOME classic and GNOME ).

One more thing.. Its only happening with root user.