Strange oddities in rendering of gnome-shell

[Bennet Gedan <bennet gedan net>]

Hi Folks,

I recenty updated the gnome-shell and having some flaws in graphical
presentation. The icons in system-tray are first rendered correctly, but
after a few seconds all icons get duplicated by the .face-icon. Further
all fonts are poorly rendered.

You can find screenshots at
   
  http://www.gedan.net/transfer/screen1.png

and

  http://www.gedan.net/transfer/screen2.png

if anyone has any ideas what might be going wrong, any help would be
appreciated.

Thanks in advance
Bennet