You say it works on your machine? Very odd... ... hmm, I must admit the one I used to test and the one I wrote in that email were differents after a second look! the one that actually worked was 0.5 [0:100]("<CsoundSynthesizer") Sorry about that! as for the difference between 0.5 , 0.25 or anything else, I'm not 100% positive but I think it has to do with priority, since the same file might get a positive reading from several sniffers. Now, why does it fails if it's 0.25?.. that's a good question. -- Philippe