Simmechanics external graphic import

Hi

I am using simmechanics to generate some animations of a control structure. The problem is, the graphics from stl are not displayed in the animation, and Matlab returns a commandline response: "JavaSceneServerPeer problem: Viewport [1367x599] too large for OpenGL implementation: max [1366x768]"

I would appreciate help on how to remove this error.

I am using Matlab 2012b