Setting up page dimensions

I am brand new to DraftSight, but also to using CAD as well.  I have went through some of the videos, and downloaded the getting started PDF.   After following the instructions on the PDF to specify the size of the drawing (looking to set up a 22 x 34 architectural drawing) I can't get it to work... it keeps going back to the default... is there a specific video that will help, or someone who can help me get this accomplished?

I appreciate all guidance

Thanks

Cass