I've the problem too since the last Update on Sep 18th morning.
"gconftool-2 --get /desktop/gnome/font_rendering/dpi" gives me 96:
~$ gconftool-2 --get /desktop/gnome/font_rendering/dpi
96
gconftool --type float --set /desktop/gnome/font_rendering/dpi 96
solves this issue. I think that the right value but wrong type is set for this gconf entry. (May be it is set to int and not float or so.
I've the problem too since the last Update on Sep 18th morning. gnome/font_ rendering/ dpi" gives me 96: gnome/font_ rendering/ dpi
"gconftool-2 --get /desktop/
~$ gconftool-2 --get /desktop/
96
gconftool --type float --set /desktop/ gnome/font_ rendering/ dpi 96
solves this issue. I think that the right value but wrong type is set for this gconf entry. (May be it is set to int and not float or so.