Hi Joseph,

That makes sense. Just a couple of suggestions in case these help: 1) I would suggest perhaps trying TurboVNC (instead of xquartz), even if just for debugging purposes in order to bypass any potential issues related to the X display on your client-side; and 2) using "vglrun matlab -nosoftwareopengl" instead of "vglrun matlab" when testing will force Matlab to avoid software OpenGL if at all possible

Good luck!
Alfonso