acad2020 goes to snaps

[gtsolid]

Bye to all,
on my known machine that this program goes to snaps. the board is a great amd w7000 on which I have no malfunctions. I don't know what to change.
Can you give me an idea?

 

[Legs]

Is he going to shoot the point of a grid? attentive to the snap that maybe is set just to move in this way.
among the various things to improve the use of autocad I usually disable the preview of the retini.
change the variable: hpquickpreview and put it off.
six problems are deeper could be linked to a particular mouse setting. I never remember it but somewhere windows alters mouse behavior. It's something related to optimization in the games you have to turn off (but I don't know why it's not the same for all this. perhaps depends on the mouse used).
other thing could also be the graphics card drivers.

p.s.
Unfortunately, when these things happen, the solution is not always unique.