Hello everybody, I'm a new user of Modeller, and I'm trying to launch it for the first time. First of all, I have to admit I'm not so familiar with programming languages, and perhaps this is the main problem with me. Anyway, I will very appreciate your patience and your valuable help and expertise. In my first attempt, I downloaded Modeller6v2 for Linux. It didn't work to me. As I'm not familiar with Linux either, I decided to download de Windows version of the program. I've installed it in a PC running Windows 2000 Pro with NT technology, and after modifying "modenv.bat" and "mod.bat" according to the instructions, I tried to launch the program with either the "mod" or modeller6v2" command from "C:\modeller6v2\bin\" directory. The result was the following: *************************************************************************** Microsoft Windows 2000 [Versión 5.00.2195] (C) Copyright 1985-2000 Microsoft Corp. C:\>cd modeller6v2 C:\modeller6v2>cd bin C:\modeller6v2\bin>mod C:\modeller6v2\bin>set MODINSTALL6v2=c:\modeller6v2 C:\modeller6v2\bin>set KEY_MODELLER6v2=XXX C:\modeller6v2\bin>set LIBS_LIB6v2=c:\modeller6v2\modlib\libs.lib C:\modeller6v2\bin>set EXECUTABLE_TYPE6v2=i386-windf C:\modeller6v2\bin>set PATH=C:\WINNT\system32;C:\WINNT;C:\WINNT\System32\Wbem;c:\modeller6v2\bin C:\modeller6v2\bin>c:\modeller6v2\bin\modeller6v2 MODELLER 6v2, 17 Feb 2002 PROTEIN STRUCTURE MODELLING BY SATISFACTION OF SPATIAL RESTRAINTS Copyright(c) 1989-2002 Andrej Sali All Rights Reserved Written by A. Sali with help from A. Fiser, R. Sanchez, M.A. Marti-Renom, B. Jerkovic, A. Badretdinov, F. Melo, J.P. Overington & E. Feyfant Rockefeller University, New York, USA Harvard University, Cambridge, USA Imperial Cancer Research Fund, London, UK Birkbeck College, University of London, London, UK Kind, OS, HostName, Kernel, Processor: 4, Windows_NT AARRLUQ x86 Family 6 Model 8 Stepping 6, GenuineI Date and time of compilation : Jul 09 2002 16:21:30 Job starting time (YY/MM/DD HH:MM:SS): 2003/07/30 11:02:40.776 fullfn__230E> File not found: mod Directories: :${MODINSTALL6v2}/bin/ Extensions : .top: Prefixes : nothing, pdb recover____E> ERROR_STATUS >= STOP_ON_ERROR: 1 1 Dynamically allocated memory at finish [B,kB,MB]: 2190959 2139. 608 2.089 Starting time : 2003/07/30 11:02:40. 776 Closing time : 2003/07/30 11:02:43. 000 Total CPU time [seconds] : 1.85 C:\modeller6v2\bin> This is exactly the same error I've previously got with the Linux version. I don't know if I'm forgetting something in the line of commands. Thank you very much for your assistance, and sorry for such a naïve question. Sincerely yours, Antonio Arroyo