I'm sorry to make so many topics on this issue. I'm trying to come to terms with GR. My latest confusion is the clock postulate. Apparently the acceleration of other objects does not cause us to observe them to be time dilated beyond the time dilation associated with their velocity. (But there's no time dilation from their acceleration.) If you yourself are accelerating, you will perceive other objects to be time dilated as a result of your own acceleration, however.
However, if you are an observer outside a gravitational field (by which I mean far enough away that the field's strength approximates to zero) looking in, objects inside the gravitational field will appear time dilated to you. So clearly there is a difference between gravity and acceleration. How does one go about understanding this difference? Does anyone know of any good analogies or descriptions?