I have used In Design for years...setting page margins is very simple but I am now using InDesign 3 (Mac) and for the life of me when I sent the margins and I want top and bottom to be different....the numbers ALWAYS revert to identical numbers....I have made active layout adjustment from drop down menu but that did not help. Can anyone help me figure this out. I put in the margins that I want but it does not 'hold'...in CS2 there never was an issue with all 4 margins being different, if that was what I needed but not so with CS3. I have looked thru the InDesign preferences but I did not see anything that made reference to margins.
As in a few other dialogs and panels, there is a tiny little button in the dialog that makes all settings always the same:
Uncheck it and try again.
(As far as I remember it, this button was there in CS2-and-older as well – nothing changed, except, apparently, its default setting in your own system.)