Hello csounders, I've just downloaded Csound 5.06 from: http://sourceforge.net/project/downloading.php?groupname=csound&filename=Csound5.06-win32-d.exe&use_mirror=mesh after installing it I tried this command line: E:\Program Files\Csound>bin\csound.exe tutorial\tutorial1.csd However it complained: E:\Program Files\Csound>bin\csound.exe tutorial\tutorial1.csd Localisation of messages is disabled, using default language. 0dBFS level = 32768.0 Csound version 5.06 (double samples) Jul 1 2007 libsndfile-1.0.18pre10 UnifiedCSD: tutorial\tutorial1.csd STARTING FILE Creating options Creating orchestra Creating score orchname: C:\DOCUME~1\EMRES~1.EMB\LOCALS~1\Temp\cs2.orc scorename: C:\DOCUME~1\EMRES~1.EMB\LOCALS~1\Temp\cs3.sco orch compiler: 28 lines read instr 1 error: no legal opcode, line 25: aout vco2 ifrequency, iamplitude error: input arg 'aout' used before defined, line 27: outs aout, aout error: input arg 'aout' used before defined, line 27: outs aout, aout ################################################################ # WARNING: OPCODEDIR64 IS NOT SET ! # # Csound requires this environment variable to be set to find # # its plugin libraries. If it is not set, you may experience # # missing opcodes, audio/MIDI drivers, or utilities. # ################################################################ 3 syntax errors in orchestra. compilation invalid Csound tidy up: Segmentation violation I have also read the tutorial.pdf and tried the examples\xanadu-high-resolution.csd but I got similar error messages, OPCODEDIR64 warning and segmentation violation. What should I do to get it properly running on my system? My current platform is: MS Windows XP Professional Version 2002 Service Pack 2 Intel (R) Core (TM) 2 CPU 6600 @ 2.40 Ghz 2 GB of RAM -- Emre Sevinc e-MBA Software Development @ Istanbul Bilgi University http://www.bilgi.edu.tr http://www.bilgiemba.net http://www.cogsci.boun.edu.tr http://ileriseviye.org/blog http://fazlamesai.net http://cazci.com