On Pres 6.3.0:
I get an error Prompt when trying to preview EPS Images in Postscript Preview:
Error -511: Requested operation is not supported by format filterError -1: Failure

I get this prompt each time it loads the image on the page.

And when it preview, it only shows a grey box in place of the image with various image info:
Creator: Adobe Acrobat 10.1.9
Creation Date: 1/22/2014, 3:49:42 PM

This same EPS file previews fine in previous versions of pres (6.1.1).