My cursor crosshair displays rotated. Why?

Crosshair displayed under an angle in the current view may be caused by several settings and situations. Possible reasons for rotated CAD cursor:

1. The SNAPANG variable settings (cursor angle), enter 0
2. The SNAPSTYL variable settings (isometric settigns), choose 0
3. Rotated user coordinate system (UCS), return to the world UCS using UCS Enter Enter
4. 3D display - oblique 3D view, return to the plan view using the PLAN command