z buffer thing: tree clumps show through hills, and planes+their icons disappear under them as well.
The sun also shows thru most (briefly flickers thru it sometimes) of the clipboard.
the prop is semitransparent on spawn, is transparent as should be after you turn it off.
I can see a lot of null spaces between tiles, or vertices of the ground, both or either, i don't know.
dxdiag dump .txt