Allegro Board Outline Does Not Appear in Gerber Preview

[biosbg]

Hello Gurus,
I am newbie in Allegro and slowly make my way ahead. I just finished my first PCB made with Allegro and everything looks fine when I review the Gerbers with GC Preview, except the fact that I cannot see any board outline there. Is this normal? I guess not...Please help me to fix this.
Also, when I open the gerbers in GC and there appear some big rectange which is way bigger than the PCB itself and the PCB is inside the rectangle.....where this came from?
Just to note, GC does not indicate any error while importing, and Allegro does not indicate any error while creating artwork and drill file.
Thank you in advance!

 

[FvM]

You should know, how you setup the gerber file generation in Allegro. If the file generation and import to GCPrevue has been
done correctly, there should be an "outline" physical layer. If so, what data is contained in it? If not, where did you expect
the outline data from Allegro to go? If outline data is present, but shows a wrong contour, there may be a problem with
your board outline definition in Allegro.

 

[geekay]

is this happened in all layer or particular layer?

 

[biosbg]

I created separate "Outline" Layer in Artwork and mapped "Board Geometry - Outline" and also "Cut Marks" to it and it all worked out. Thank you!