Can't set plot window in 'Layout' (BricsCAD V14 Pro).

I've been trying to set the plot window in Layout tag for BricsCAD V14 Pro without success. BricsCAD V14 always overrides my plot window, and the plot window set by BricsCAD V14 is ALWAYS way off my intended plot window. I don't have any problem with BricsCAD V13 Pro. How to close the automatic plot window setting in BricsCAD V14 Pro? Thanks.

Regards,

J Chin