Hello Jeremy, I found the error why it wasn't working on my mac: in /etc/hosts I only had 127.0.0.1 localhost It worked after I added: 127.0.0.1 Koala where "Koala" is the name of my machine. This despite the request for an et server on "localhost". It seems that Java looks up the host name and somewhere in it's "net" component uses that. I still get the problem that the events are passed to the monitoring app, but they then cannot be read by it, giving me these errors or all 3 different machine, trying with 2 different test run data files. Best, Maurik ERROR reread magic # (0) & still not right java.io.IOException: Failed reading first block header/dictionary at org.jlab.coda.jevio.EvioReader.<init>(EvioReader.java:335) at org.jlab.coda.jevio.EvioReader.<init>(EvioReader.java:306) at org.hps.monitoring.DefaultEtEventProcessor.createEvioEvent(DefaultEtEventProcessor.java:379) at org.hps.monitoring.DefaultEtEventProcessor.processEtEvent(DefaultEtEventProcessor.java:298) at org.hps.monitoring.DefaultEtEventProcessor.processEtEvents(DefaultEtEventProcessor.java:248) at org.hps.monitoring.DefaultEtEventProcessor.process(DefaultEtEventProcessor.java:411) at org.hps.monitoring.MonitoringApplication$5.run(MonitoringApplication.java:1383) at java.lang.Thread.run(Thread.java:744) On May 1, 2014, at 12:06 AM, McCormick, Jeremy I. <[log in to unmask]> wrote: > This worked fine the last time I tried on OSX / Mavericks. I'll see if I can reproduce the issue... ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1