Warrock not fullscreen

SecondEnergy

I've tried everything but everytime I start Warrock I can't see it full screen, any ideas?

It also looks like it's a Windows problem, because evrytime i change my PC resolution to 1024x768 (best for warrock) it reduces my screensize there too.

Maybe there is something I can change into Warrock files? Or something I can do from Windows? Even if i tried almost everithing...