Quote:
The General Options settings affect both Render Previews and Final Views.
• Optimizations On saves rendering data to your video card, which speeds up rendering time. This option may cause problems if the rendering data for your model exceeds the video card’s memory.
If your computer stops responding when rendering, try unchecking Optimizations On. This slows down rendering time considerably, though, so if the problem is not solved, leave this check box selected.
This points to a problem with my video card, I suppose. It doesn't seem to slow down the rendering time perceptibly?