I am trialing Design Review with my Revit 9.1 and I'm having no end of trouble. I continuously get a 'script error' and it asks me if I want to continue running them, I export a 3D model and when I turn the model to a point it just crashes (the image on screen remains static and nothing I do will allow me to modify the view).

Is there a fix for this and if so would it apply to the trial version?