Unable to clear "Disable Social's comment display (use standard theme…) box

My tech support said there was a problem with a value of a cooke that prevented the proper function of php… after they reset that, Social seemed to start working again. I still cannot change the value of that checkbox, but the Social theme seems to be displaying normally. For the time being it seems the interface is working as I expect it to. (I haven’t yet found a new social comment today, so I hope it works under the hood, too.)