When I run my motion study in the normal non-perspective view all the parts are coming in correctly and the animation is perfect.  As soon as I switch the view to perspective to go inside the cabin of what i am designing parts/feature of parts will turn to a solid block (dummy model just like a cube shown in the picture below), wireframe or even dissapear.  I have tried playing around with the settings of the document quality and the assembly properties as well.  Is this just a lack of hardware power or are there a few tricks I might be missing which would help me out?  Any help would be great!

Thanks,

Scott