Dear Munan, this is a question that should better go to the Coot mailing list. Anyway - it is difficult to say what the problem is, without more informations. It could be an X11 problem or a Coot installation problem. Generally, on Mac OS X, you don't have to start X11 manually or at login - there is a launchd daemon that automatically starts X11 if it is required. Also, you must not set any DISPLAY variable in your .bashrc, .bash_proflie or elsewhere. The following works for me on Mac OS X: I've installed the precompiled Coot version for Mac OS X, kindly provided by Bill Scott (->Google), and I've installed the more up-to-date X11 from xquartz.macosforge.org (but this is not necessary). You may want to try this. Good luck, Dirk. Am 30.06.10 10:48, schrieb Md. Munan Shaik: > Dear BB > I have a problem with coot opening, i tried to open but its not opended. > Then I found some other problem, X11 terminal is not opened on login > (even its in the list on login items), if I open X11 and then tried to > open coot still not working, I am using Macbook and the OS X is > 10.6.1. (coot is install to Applications and not source to tcsh > terminal, as i preferred not to open from terminal). > > if anybody have suggestion, please . > > thanking you all, > =================================================== > Md. Munan Shaik > Department of Biotehnology > School of Bioscience and Biotechnology > via G. Colombo 03 > Padova 35131, Italy > > > -- ******************************************************* Dirk Kostrewa Gene Center Munich, A5.07 Department of Biochemistry Ludwig-Maximilians-Universität München Feodor-Lynen-Str. 25 D-81377 Munich Germany Phone: +49-89-2180-76845 Fax: +49-89-2180-76999 E-mail: [log in to unmask] WWW: www.genzentrum.lmu.de *******************************************************