Problem with showing Social Ring Before and After the Content

Hi,
I have a problem with showing the Social Ring Before and After the Content in Posts and Pages.

When I try to save the settings, “After the Content” disappear.

Could someone help me, please?

I have the last version of the plugin: 1.2.0 .

thanks
Matteo

http://wordpress.org/extend/plugins/wordpress-social-ring/