Hi List, Every time netCsound is mentioned on the list, I get excited. Today though, I seem to be having difficulty. Taking a .csd file that normally works fine and sending it to netCsound reveals this cryptic error message. What could it mean? Is there some type of encoding or line ending issue? For reference, the file I used is available here http://harbl.iiichan.net/csound/twilight44.csd -David time resolution is 1.003 ns 0dBFS level = 32768.0 Csound version 5.08.91 beta (double samples) Apr 4 2008 libsndfile-1.0.18pre20 UnifiedCSD: /srv/www/htdocs/netcsound/Results/1227350613__twilight44.csd STARTING FILE Creating orchestra Creating score orchname: /tmp/fileeyiKj1.orc scorename: /tmp/fileCGhC5V.sco orch compiler: 187 lines read opcode cpsmid k k opcode pan_equal_power aa ak instr 1 2 3 4 5 6 7 8 error: no legal opcode, line 98: aL butlp aL, 420 error: no legal opcode, line 100: aR butlp aR, 420  instr 25 error: no legal opcode, line 169: ahp1 butterhp ga1, 111 error: no legal opcode, line 171: ahp2 butterhp ga2, 111 error: illegal character ., line 174: aL, aR reverbsc ahp1, ahp2, 0.91, 18532                              ^ error: no legal opcode, line 174: aL, aR reverbsc ahp1, ahp2, 0.91, 18532 error: input arg 'aR' used before defined, line 177:  outs aL, aR error: input arg 'aL' used before defined, line 177:  outs aL, aR  ################################################################  # 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. #  ################################################################ 8 syntax errors in orchestra. compilation invalid Removing temporary file /tmp/fileCGhC5V.sco ... Removing temporary file /tmp/fileeyiKj1.orc ...