Idle dies with "error: command IDLE illegal in state AUTH"

Using Gmailwatcher in Oneiric from the Dev PPA and it works as expected on start-up, or when adding a new folder to the watch list (All Mail is part of my watched folders). Having marked a new email as read it never updates the message indicator and if there are no new messages on start-up then new messages don't give alert. As the new GW uses the IDLE command this error seems relevant...!

phill@dreamland:~$ gmailwatcher
/usr/lib/python2.7/dist-packages/gobject/constants.py:24: Warning: g_boxed_type_register_static: assertion `g_type_from_name (name) == 0' failed
  import gobject._gobject
** Message: console message: undefined @0: Syntax error, unrecognized expression: Mail]

** Message: console message: undefined @0: Syntax error, unrecognized expression: Mail]

Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner
    self.run()
  File "/opt/owaislone/gmailwatcher/lib/gmail_imap.py", line 67, in run
    self.wait_for_server()
  File "/opt/owaislone/gmailwatcher/lib/gmail_imap.py", line 187, in wait_for_server
    callback=_idle_callback
  File "/opt/owaislone/gmailwatcher/lib/imaplib2.py", line 752, in idle
    return self._simple_command(name, **kw)
  File "/opt/owaislone/gmailwatcher/lib/imaplib2.py", line 1487, in _simple_command
    rqb = self._command(name, callback=self._command_completer, *args)
  File "/opt/owaislone/gmailwatcher/lib/imaplib2.py", line 1186, in _command
    % (name, self.state))
error: command IDLE illegal in state AUTH

--Or from adding a new folder to watch whilst already running--

** Message: console message: undefined @0: TypeError: 'undefined' is not an object

** Message: console message: undefined @0: Syntax error, unrecognized expression: Mail]

** Message: console message: undefined @0: TypeError: 'undefined' is not an object

** Message: console message: undefined @0: Syntax error, unrecognized expression: Mail]

** Message: console message: undefined @0: Syntax error, unrecognized expression: Mail]

Exception in thread Thread-8:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner
    self.run()
  File "/opt/owaislone/gmailwatcher/lib/gmail_imap.py", line 67, in run
    self.wait_for_server()
  File "/opt/owaislone/gmailwatcher/lib/gmail_imap.py", line 187, in wait_for_server
    callback=_idle_callback
  File "/opt/owaislone/gmailwatcher/lib/imaplib2.py", line 752, in idle
    return self._simple_command(name, **kw)
  File "/opt/owaislone/gmailwatcher/lib/imaplib2.py", line 1487, in _simple_command
    rqb = self._command(name, callback=self._command_completer, *args)
  File "/opt/owaislone/gmailwatcher/lib/imaplib2.py", line 1186, in _command
    % (name, self.state))
error: command IDLE illegal in state AUTH