The ghost line is in the Work Environment (More Options - in version 10 anyway, similar in other versions).
This will only effect bounding box of objects, coulmns, figures and drawings.
It has nothing to do with the stretchy rubber-band lines as you stretch or being able to see the marquee as you place it.
That is a video card / driver problem.
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11