I second (or ‘third’) that.
Happens to me using Chrome (latest stable build - Version 21.0.1180.89)…
I’ve implemented the buttons from API version 1 to 1.1, and it happens with the new JS versions as well as with the old iframe version…
At least I know it’s not just me…
Site: http://www.thesun.co.uk/sol/homepage/sport/football/premteams/tottenham_hotspur/