I posted a while ago about the crashes caused by Apple’s X3100 OpenGL driver, under Mac OS X 10.5.5. Having installed the 10.5.6 update, I am delighted to report that my test case now runs flawlessly, with no sign of a crash. I haven’t stressed the machine heavily, but after 10 minutes the test is still going strong.
On the down side, Apple didn’t fix the Blender crash, although it appears to occur less frequently, and the UI responsiveness is much improved. From what I have gleaned on the web, Blender seems to perform some obscure/outdated tricks with glDrawPixels and the front buffer, so the ball may be in their court to update Blender’s UI rendering. It is however irritating in the extreme, as Blender was previously my staple modeller, and I haven’t yet become comfortable with a replacement – suggestions are welcome for other free, MacBook-capable modelling packages.