Hi Robert, one thing you can try is to install the latest XQuartz from here: http://xquartz.macosforge.org/landing/ then set MoI to use that system installed XQuartz instead of the one that's bundled along with it.

To change the setting in MoI to use the system XQuartz, right-click on the .app and choose "Show package contents" and run the Wineskin.app that you will find in there. Inside there push the "Advanced" button and then on the next dialog go to the Options tab. Then the settings to change are the bottom 2 checkboxes on that page - uncheck "use wrapper's quartz-wm" and check the "use System XQuartz" and see if that makes any difference.

If you're unable to run MoI as you need, please let me know and I can refund your recent 3.0 purchase.

- Michael