Same here, I had to reset it to the SOH default skin in the general settings in my user profile.
Also, the facebook connector seems to have trouble linking to connect.facebook.com (is this necessary...). Since this is apparent for other websites too that use the connector, I think FB has problems.
This makes browsing these sites very slow.
Little hint: install a tracking blocker like Ghostery and enable the bug blocking. This also blocks side connections to connect.facebook.com. And gets rid of all that snooping and spying on your web surfing.
Cheers,
Mark