title: Mac OS: remove old erlang installation
body: <p>I am using Mac OS Snow leopard and installed erlang from source (R13B04). Now I started using mac ports system to manage software. This port utility installed a newer version of erlang (R14A) runtime during the set up of rabbitmq server. But it looks like when I start rabbitmq it is using the old erlang run time and causing problems. </p>
  
  <p>What is the best way to remove the old erlang installation? Can I just delete those old directories?</p>