Some drawings open to a blank screen; you have to ZOOM>Extent
to see image.
All image outlines should be on Layer Zero so the image will assume the
properties of the layer of insertion.
Turn BLIPMODE "Off"
Blocks would be more useful IF drawings conformed to standard NCS/AIA layering guidelines.
Blocks would be easier to find if drawings were organized under folders for similar images.
Interesting collection of images... --Thomas Irvin