Hi Nick,

Thank you so much for your response. Turns out that the XQuartz had updated to 2.7.6, I've reinstalled 2.7.5 and it is working!

Finally I can finish this study! Best wishes, Gill

_____________________ Gillian Cooke, Ph.D. Postdoctoral Research Associate Lifelong Brain & Cognition Lab Beckman Institute University of Illinois, Urbana

Email: gillian.e.cooke@gmail.commailto:gillian.e.cooke@gmail.com gcooke@illinois.edumailto:gcooke@illinois.edu