Upload area greyed out

[konka]

Hello,
as you can see in the attached picture, for some reason the upload/status-area in my Vuze-window became grey. I can change the size of the area, etc. - but there is no content anymore.

Is there any way to fix this? Maybe in the azureus.config?

Thanks
konka.

Before you might ask: The Download-area is working - I am simply just seeding most of the time.