I've tried over and over again to figure this out.... but Social Discussions breaks other plugins/does not always function correctly itself. Right now, the "edit" buttons in the back end won't even open.
Intriguing as this error is - sometimes it loads fine with every other plugin - other times only some of the social networking sites buttons load and other plugins just won't function at all.
After deactivating plugins, deleting, uninstalling, reinstalling, even trying on a test website with a 100% fresh wordpress install... social discussions will not operate at 100% stability.
Quite disappointing as the features of this plugin are amazing. Just don't use it if you run multiple plugins running similar scripts.