V5 - pyro seems to block server

[Ferdinand]

could not connect with xml-rpc
found this in log

[2011-01-09 10:06:05,282] ^[[33m^[[49mWARNING^[[0m:sql:[01]: Cursor not closed explicitly
[2011-01-09 10:06:05,282] ^[[33m^[[49mWARNING^[[0m:sql:[02]: Cursor was created at /home/terp/OpenERP/branch/server/5.0/bin/addons/poweremail/poweremail_template.py:98
view_ref tree False
view_ref form False
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib64/python2.5/threading.py", line 486, in __bootstrap_inner
    self.run()
  File "/home/terp/OpenERP/branch/server/5.0/bin/addons/pyro.zip/pyro/pyro.py", line 55, in run
    daemon.requestLoop()
  File "/usr/lib64/python2.5/site-packages/Pyro/protocol.py", line 1056, in requestLoop
    self.handleRequests(timeout,others,callback)
  File "/usr/lib64/python2.5/site-packages/Pyro/protocol.py", line 1062, in handleRequests
    self._handleRequest_Threaded(timeout,others,callback)
  File "/usr/lib64/python2.5/site-packages/Pyro/protocol.py", line 1135, in _handleRequest_Threaded
    thread.start()
  File "/usr/lib64/python2.5/threading.py", line 440, in start
    _start_new_thread(self.__bootstrap, ())
error: can't start new thread