Sketchup window goes black

Everytime i press render my sketchup screen goes black. V-Ray still continues to render. What might be causing this?

Do you mean the SketchUp model window or the V-ray render window? #1, try updating your graphics card driver, #2, check that your scene has enough light - the default levels might be low, and if you are using only the sun to light an interior, your openings must let in enough light.