checked this out today, was surprised to see:
inDesign, open (but not active, ie in the dock), was using between 18-66% of the cpu! other apps in the dock using cpu as well, even though not currently acitve.
i thought, especially with a lot of ram, i could leave most of my apps open; is this not so?
is it better to only open what i need, and quit apps not currently being used?