I have Pages 09 with last updates (4.0.3).

Not sure why but my proofreader stopped to work and some options within the suite are now in english (which is not my default language).

When I select proofreader under edit menu all I get is a blank window (as you can see in the picture below) and the famous "error" bip.

When I right click in any text area, selected or not, I get the option to start proofreader, but now in english (again, not my sys language) and the result is the very same. Print included below

I tried to uninstall/install iWork, reinstalled Mac OS (not from scratch) and repaired permissions. Nothing worked.

Does anyone know what could be wrong and how should I correct this?