Full_Name: Liqun Xing Version: 2.6.2 OS: Solaris 9 Submission from: (NULL) (76.182.91.82) When first time launch X11(), it was fine. However, when closed the X11 windon by clicking the close button, or closed it off by command Dev.off() and launched the X11() again, got segfault, and asking for exiting R and other options.