fill assistant won't open

I'm running Windows Vista SP2 32bit, with IE9. Since my Norton Internet Security product updated, I have my Norton Toolbar enabled and I can see my vault button. When I click on the vault button and enter the password, I am logged into the vault ok. However the only 2 buttons that I can highlight are the wallet button and the close vault button. When I hover over the fill assistant button, nothing happens. I have even tried downloading Google Chrome, but it still doesn't work in that either. Any thoughts, as this is really upsetting me, as I have to enter details manually and I am reluctant to do so as my system was hacked into some years ago when Norton failed after I downloaded banking security software. Thanks.