What's going on here? I made a colour adjustment to my scene, and went to render a new preview (takes about 2-3 hours) yet this one is almost 7 hours, and not complete... and it's not even utilize my CPU to, well, near it's fullest... I thought it'd be done when a nap was over, but instead get this still render. When I watch it, I see no progress. It's like watching a pot boil.
Could it be because it's almost maxing the 4 gigs integrated ram, and waiting for swap? If so, why suddenly this one time? Does cloud color serious impact resources? Though only one color was added, to a scene full of colored clouds.