To start off, I have a Sandy Bridge Hackintosh which runs Lion with an i5 processor and 32gb of Ram.
My problem is only in After Effects.
I'll be working on a shot and then, out of nowhere, I get the spinning wheel and one of my CPUs maxes out and stays there for 2-5 minutes. Then it stops and I can resume for a short time and then it does it again and so on.
I have turned off multiprocessing and that hasn't helped. Tried giving it more RAM - right now I have 24gb allocated for After Effects and Photoshop.
I have downloaded some presets and scripts, but I 'm not sure how to check if they're the problem. If you have any ideas, please don't hesitate. I'm desperate here.