I’m not sure if this is a technical post or a bug post. I decided to post as a bug report because I’ve stopped them from occurring at the loss of a a single graphical slider. I’ve recently upgraded from a single ATI 5770 to 2 ATI 7770’s. The result being that on the same settings crashes began happening due to what seemed to be various lighting and particle effects. The crash can be reliably duplicated just above the Castavall Waypoint in the Bloodtide Coast. Turning the shaders to the lowest setting has stopped these crashes. The crashes result in a full lock up of my system except for audio devices(Capture and playback) preventing even Ctrl+Alt+Del from functioning. No crash files seem to be produced in the AppData folder either.