Firefox Team member profile glitch

Hey.I have a glitch in the Team member profile section in firefox (v21 current updated version). Its flickers white at the top, and if re-sized at the bottom.

http://review.sibko.net/glitch1.jpg

http://review.sibko.net/glitch2.jpg

I run the same Firefox at home and at work on the pc and have the same issue on both machines.

To rule out modifications I installed the untouched version here http://review.sibko.net and got the same result.

To rule out browser plugin I started in safe mode with plugins disables and got the same result.

Trying to use firebox to determined what the element is that might be coming on but cant get it.

Any help appreciated

Sibko