Hi ed, thanks for posting that. Your /tmp permissions look fine.

The entry in the log: "quartz-wm[2268]: can't open default display" looks like it could be the problem - I don't think that is supposed to happen on a normal run.

Have you possibly set the desktop screen resolution in any unusual way?

Can you try installing the regular XQuartz latest version from here: http://xquartz.macosforge.org/landing/ - does the regular XQuartz seem to launch ok for you? If it does, then try setting MoI to use the system XQuartz and see if that helps anything. You can reach the setting for that by right-clicking on the MoI .app and pick "Show package contents". Then inside there run Wineskin.app, and click the "Advanced" button and go to the "Options" tab, and then the settings to mess with are the bottom 2 checkboxes on that page - uncheck the "use wrapper's quartz-wm" one and check the "use system Xquartz" and see if that makes any difference.

- Michael