yes, you can modify the objectbar theme, just find a good tutorial or search the net for themes that already include what you're looking for. about vista-windowblinds, my guess is that the langbar is simply not skinned on that theme, have you tried others? i can't help you much appart from what i already said, but... i think you can add shortcuts to switch between languages instead of using the language bar. maybe that would help you to get rid of your problems