What if the Model Space is empty?
Paper space view viewport should also be empty. What appears to us as a major problem with the program is that there is no non-printable layer setting.
In AutoCAD viewports are typically placed on non-printable layers and the contents are displayed because they are on a different layer than the non-printable layer.
In TurboCAD viewport boundary is the property of the viewport that can be turned on and off.
When we opened a DWG drawing in TurboCAD the viewports printed the border when these should be invisible when coming in from a DWG on a layer that is non-printable. This bug however does allow you to see a viewport with no contents.