When I click on a workflow I see the list of activities but the workflow editor will not display. I am running version 5 on OSX and I don't see any errors in the log files. I am not sure if they are related but the process editor also does not display but does give the error below:

File "/opt/local/lib/python2.5/site-packages/CherryPy-2.3.0-py2.5.egg/cherrypy/_cpwsgiserver.py", line 240, in run
request.write(line)
File "/opt/local/lib/python2.5/site-packages/CherryPy-2.3.0-py2.5.egg/cherrypy/_cpwsgiserver.py", line 187, in write
self.wfile.write(d)
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/socket.py", line 274, in write
self.flush()
File "/opt/local/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/socket.py", line 261, in flush
self._sock.sendall(buffer)
error: (35, 'Resource temporarily unavailable')

Any ideas?