UCS in World, Crosshairs are NOT

I have a drawing where the UCS and the crosshairs are always different.

My plan is not orthongonal to World. I set my UCS according to a line on the plan. UCS/E/PLAN/C/

This will set my UCS to the drawing BUT my crosshairs are 16deg off.

And when I draw with orthagonal on it will draw according to the 16 deg crosshairs.

If I go back to world and type plan// the crosshairs are still off.

How can I make the UCS and the crosshairs match and be able to draw at right angles to the ucs AND crosshairs?

check your setting on the SNAPANG variable, should be 0

how do you do that?

thanks! your are a genius!