<HTML><HEAD><META content="text/html; charset=x-user-defined" http-equiv="Content-Type"><style type="text/css"><!--.MailHeader { font-family: "Arial"; font-size: 8pt; color: #000000; font-style: normal; font-weight: normal; text-decoration: none; }//--></style></HEAD><BODY><font face=Arial size=2>-<br>> <br>>Gromacs crew,<br>><br>>I have installed the gromacs package on my PC with Linux platform. The<br>>installation was successful, however I am unable to run the demo. The<br>>following error occurs during the run....<br>><br>>" You seem to have the DISPLAY variable is set, so we will<br>>pop up a window with the output of the pdb2gmx program<br>>Press <enter><br>>Starting pdb2gmx<br>>[1] 22818<br>>pdb2gmx finished<br>>Press <enter>Warning: Tried to connect to session manager,<br>>Authentication Reject<br>>ed, reason : None of the authentication protocols specified are<br>>supported and host-based authentication failedst-based authentication failed<br>><br>>[1] Done xterm -title pdb2gmx -sb<br>>-e tail +0f output<br>>.pdb2gmx "<br>><br>><br>>Was my gromacs installation correct. Is there anything I have to<br>>set. This happens with every program, a pop up window appears and gives<br>>out an error saying "pdb2gmx:Command not found. " what could be the<br>>problem?<br>>Suggest me a solution.<br>><br>><br>>regards,<br>><br>>sharada <br>><br>>A.sharada Devi<br>>Center for Cellular and molecular Biology<br>>Uppal Road<br>>Hyderabad -500 007<br>>AP<br>>INDIA<br>><br>><br>><br>><br>></font></BODY></HTML>