Another newbie question. I'm trying to run one of the examples
  ....\csound\tutorial\koch\05_koch\koch.py
  although this problem seems to occur with everything that tries to 
create a .wav file.
The .csd, .orc, .sco and .mid get created but then it dies trying to 
create the .wav with the message
"diskinfo cannot open koch.wav". At first I though it was a permissions 
problem and tried changing
permissions and directories to no avail. This happens using the command 
line and several IDE's.
I'm using Python 2.7 on win7 and Csound 5177 distribution. This is 
probably something silly but
any suggestions would be greatly appreciated.