not that, but I posted an issue similar couple of weeks ago and no one responded. It rendered nearly 2/3, then partial render part around the mouth etc, then finished later . The areas not rendered were pixillated..i was using IDL.

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854