CompuServe Messages

I forgot to add this to my earlier request for help concerning the PAR in the Hware/OpSys/Video section under" PAR\TARGA NTSC Distortion" but I think this one is more of a 3DS3 situation so I'm sending it here. We have the render resolution set in 3DS3 to 752×480, aspect at 0.83. When we render to the PAR drive the rendering resolution changes right before our eyes to 640×480 aspect.83. The PAR manual says that we will experience the black lines at the edge of the screen if we don't render at 752. If we can get this to stay at 752 it may solve the previously mentioned problem. I just checked and it does this change no matter what the rendered image destination is so it isn't a PAR problem. Weather I set the res manually, use the 752×480 button or just leave it to default, which is set for 752×480 aspect .83 it still changes to 640×480 .83 aspect. How come the rendering res changes automatically to 640 at rendering rather than stays at our default of 752? We are a Autodesk Multimedia Dealer and are usually able to figure these things out. Not this time however. Help! Thanks in advance.