White outline for some GTK controls since upgrade to Firefox 6

Hi,

My GTK setup has started to behave strangely - I belive since upgrading to FF 6 . The FF search bar, the Gimp menu and other similar controls are now decorated with a transparent white outline.

http://i.imgur.com/E3Lke.png

http://i.imgur.com/qrlvm.png

I do not have any customisations applied and I am unsure how to fix it. Any hints would be appreciated.

Update: Running OpenSUSE 11.4 64bit, GTK 2.22.1 , Gnome 2.32.1 .

Thanks,

Robert

This seems fixed once I have disabled/enabled desktop effects.