I have xrefed a drawing into another.
 
In the paperspace viewport I turn of layers that I don't want to see. Ok so far.
 
When I go back into the drawing and reload the xref to update the view the layers I had previously turned off re-appear again.
 
Can anyone explain why the layers do not stay turned off. I don't want to keep having to turn them off every time I reload the xref.
 
Cheers
 
 

I got the answer.
 
Set the 'Visretain' varable to 1  :)
 
This also ensures your xrefs actually print out and not look like they are on an invisible layer.