I'll tell AFAIK, PsymX uses Catalyst 9.7, I'm using 9.9; We have different credit ... erm graphics cards. And I find crashing combination only after two reboots. I think problematic object is found, but Catalyst 9.7 is less stable than Catalyst 9.9. Also I think I will be able to find crashing combination for both maps - but it will require a lot of reboots because my catalyst seems to apply new settings ony after reboot - at least doom3 crashed only after reboot. PsymX, try to upgrade Catalyst and disable 3 settings I mentioned in my previous post. If it will fix your crash, this can be added to the FAQ and there will be no need to fix model.