ucs and drawing problem

[LIU]

hi to all ,

i created a 100 ft wide rectangle,

and applied zoom extents,

saved and closed drawing.

when i reopened drawing , 

green line was not collinear to y-axis.

zoom previous did not worked.

any solution to that ?

 

Edited 44 minutes ago by LIU

[SLW210]

What's the "green line"?

 

Hard to tell anything from an image.

 

Please explain better or post the .dwg.