Answered
No matter what I do with my program-level page display preferences, pdf files with document properties page layout and magnification set to "Default" still ignore my default settings (Single page/fit page) and open at 228% magnification.
When the document layout and magnification properties are known to be set to "default" why would the program page display preferences still be ignored?
I guess that Acrobat needs to use a 228% magnification to "fit page" on your screen…
Try to set your default preferences to a 100% magnification: this should let you know if your Preferences settings works as expected.
;-)
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