this mornign I opened a drawing file I worked on a few days ago. There are 2 or 3 views on the drawing that have lots of missing feature lines - both missing model edge lines and also missing sketch lines created in the drawing itself (including a few blocks). All the views in question are sections

The only way the missing elements are seen is if I use Shaded or Shaded with Edges.

Oh - and also there are 4 versions of this Project in 4 separate folders created with "Pack&Go" as the client wanted small changes made. Every one down to the original has the exact same behavior - even though they are referencing completely different assembly files etc.

Here's what I've tried to solve it yet:

     install the newest video driver

     re-install the "recommended" video driver

     Open all parts and assemblies referenced, rebuild and save each one

     Move the section lines a little and rebuild

     Delete the views in question and Undo.

     Quit SW, restart computer.

Nothing so far has had any affect. I can live without solving it - i can redraw the views -  but its annoying as I'm sure you all know and it's killing my efficiency today.

thanks

Marshall