Page Setup Printable Area Wil Not Change

["Mitch"]

I'm using AutoCAD 2015. I received an AutoCAD file in which the paper space has page setup printable area as 24 x 36. I want to change it to another size being 11 x 17. I selected the proper printer for my desirable print size, paper size and orientation. When I ok the dialog box, the printable area remained the same, 24 x 36, it would not change. I tried this in another file that I already have in my computer and the printable area changes with no problems. It's the particular set of files I received from another office in which the printable area remains the same as it came to me, no matter what other page setup sizes I select. Could this be some kind of setting somewhere that the previous user made before it was sent from his office? Is it possible that the printable area can be locked and will not change until it is unlocked? I have never seen this problem before.

[maratovich]

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