I was getting frequent crashes when running CoH, sometimes needing a hard reset of the machine to recover. In particular, staying in Atlas Park for more than a minute would automatically cause the game to crash. I mentioned this in an earlier Linux thread, although I am running Crossover Games Mac.
Not being able to play the game for more than five minutes at a time got really frustrating. I decided to fiddle with the graphics settings to see if there were any options that were potentially causing the crashes and could be turned off or down. I made changes to the settings as follows:
Advanced Graphics Settings: Enabled
Particle Physics Quality: Medium
World Texture Quality: Medium
Character Texture Quality: Medium
World Detail: 80%
Character Detail: 100%
Max Particle Count: 50,000
Vertical Sync: Disabled
Use Geometry Buffers: Disabled
Anisotropic Filtering: Off
Texture Crispness: Smooth
Shader Quality: Low (No World Bumpmaps)
Water Effects: Low Quality
With these settings I have been able to play for at least 30 minutes without crashing, including crossing zones, and lingering and moving through Atlas Park for as long as I like. I will no doubt be giving this more of a test now that I don't have to restart, login and reload the game every few minutes, and I'll be able see just how long a session I can play.
I have had a couple of crashes when testing the settings, but the above settings offer a remarkable improvement over what I was experiencing with the default or augmented settings.
For reference, I am running at a resolution of 2560x1579 on a dual 2.8 GHz Quad-core Xeon Mac Pro with 2 GB RAM, and a 512 MB nVidia GeForce 8800 GT.