yes, it would be nice to know whether it was cause by a plugin in dcpaley’ case. I have tried to contact the autor of similar-posts, but no answer.
Dcpaley, should the issue be resolved, please say if you are using the English WordPress or a localized version.
I ask this because you may notice different behaviours on English and different of Localized, I wrote more here: http://www.security-exchange.net/news/wordpress-28-settings-general-save-button-not-loading/
I do not have SEO which seems to be common cause of title being over written by plugin or theme. In my case, it was just simply missing “save changes” button on the Settings->General page. MichaelH solution solved my problem. Thanks.