Can't save my Gameface

Hi,
I tried to make a gameface for my VP in Fifa 11 , everything works fine, but when i try to save my gameface , nothing happens. No error, no hint what went wrong. I just can't save it. I tried to close the gameface creator in the bottom right corner - nothing. I tried it like 10 times now, and there is not a single clue what i am doing wrong.
Is this a known issue? Does anyone know what to do ? Btw: i'm using Firefox 3.6.13.
Thanks for your help