There have been numerous reports of problems with many applications with Mac OSX v10.6.4 and NVIDIA drivers. I'd first make sure that you've updated to the newest NVIDIA drivers. (I believe that there was an update just a few days ago.)
This might or might not be the issue that you're facing, but it's the first thing that I'd try.
Here is the new Nvidia driver for 10.6.4...
- Improved OpenGL performance for Geforce GTX 285 under certain conditions
- Improved compatibility with recent Mac OS X Software Updates.(Nice understatement)
This is only a possible work around and not a solution, but have you tried to disable "use Open GL" in the AE preferences?
We have also had problems with random screen flickering / flashing and the computer completely freezes. Disabling Open GL seemed to help.
Thanks everyone. I turned off OpenGL previews previously, but it seems the 3d light still triggers it... Will try the new drivers...
For sure it is really frustrating, especially when you convinced the company you work with to switch from FCP to CS5...
I have the same problem with a Mac Pro bought in April and a GTX 280... We were pretty happy with Premiere Pro, when editing a feature shot on RED 4K HD. It is the more stable release of that soft I ever seen, and I'm using it since Premiere 5.1 and the mini-DV.
But I'm disappointed by After Effect, which use to be alway stable in the previous version I used. We're working on a 3300$ computer, using a 450$ graphic card, and the two Samsung monitors keep flashing before AFX craches... That happen every 15 minutes.
The GeForce driven is updated. We have also a Geforce GT 120 in the Mac Pro, to plug a Wacom Cintiq 12WX on it... The screen of the wacom doesn't flash when it happens to the Samsungs, that's why I'm thinking of an issue involving the GTX 280. Anyway, nVidia does not provide any driver for Mac for the GT 120...
So it's probably more a graphic card issue, than a software one... But if someone has any other idea to get rid of this problem (unactivate open GL does not change the problem)... ?
Thanks in advance for who may help...
See this thread:
There are conflicts between Mac OSX v10.6.4 and NVIDIA OpenGL drivers. This isssue doesn't just affect After Effects; it affects any software that exercises OpenGL.
If you disable OpenGL rendering in After Effects, it's still using OpenGL to do things like draw pixels to the screen.
thank you for answering so quickly... Hope Apple or nVidia will solve this problem sooner than later.
So yesterday, I removed the GTX 280, and replace it by a another GT 120 (we need 3 monitors, since we're using a wacom cintiq)... But it did not change anything, since the drivers were still there, and I did not find how to un-instal them.
But thanks to Todd, I've been aware of that Apple Fix,and installed it yesterday evening.
And I just worked the all day without experiencing the problem anymore. Though it was a different AFX project. I'll be working back on the project in which I experience the bug, and let you know.
Also, I did not re-instal the GTX 280, since it works like that, and don't want to take the risk to ruin everything...
So, now, let's go to work!!
Thank you Todd