Thanks for your advice. I did a clean install to all the versions available (5.0.0 -> 5.0.1-.0.4), but none of these seem to fix the problem.
The crash I'm getting is most likely to happen when hitting play in the clip monitor window. OS X will display the rolling ball and it will never stop. No warning shows up. The Activity monitor shows that Premiere is "not responding".
Can anyone recall if there has been a H.264 Quicktime update during recent months? Could this be related to a H.264 codec issue?
I reverted OS X Snow Leopard to 10.6. from the installation DVD and did a clean install off the CS5 Production Premium.
The most reliable combination at this stage seemed to be OS X 10.6 and Premiere 5.0.0, but even that crashed more than it did during the past 8 months.
When I then installed the Premiere CS5 5.0.3 update Premiere then became very unstable. The software will usually crash on the first attempt of playing video.
My macbook pro (with OS X 10.5.) is still stable so the issue at hand seems to be related to the combination of OS X 10.6. and Premiere CS5. Any ideas on this Adobe?
How can I get more help with this? I really need to get a project done in July or I'll lose my client.
Does Adobe accept log files via e-mail etc. to trace problems like this?
I just was having big problems after the 5.0.4 update, and I did a lot of trawling... turns out there is an update to the nVidia drivers and VUDA drivers available that is not too well publicized yet, it would seem. I installed these and I have been running smooth as silk ever since. This update is not JUST for the Quadro 4000 cards, but most of them it seems: