i'm getting lots of these:

  File "twisted\internet\base.pyc", line 800, in runUntilCurrent

--- ---
  File "p2pool\bitcoin\stratum.pyc", line 38, in _send_work

  File "p2pool\bitcoin\worker_interface.pyc", line 129, in get_work

  File "p2pool\work.pyc", line 243, in get_work

p2pool.util.jsonrpc.NarrowError: -12345 p2pool is downloading shares
Unhandled Error
Traceback (most recent call last):
  File "p2pool\main.pyc", line 666, in run

  File "twisted\internet\base.pyc", line 1169, in run

  File "twisted\internet\base.pyc", line 1178, in mainLoop

  File "twisted\internet\base.pyc", line 800, in runUntilCurrent

--- ---
  File "p2pool\bitcoin\stratum.pyc", line 38, in _send_work

  File "p2pool\bitcoin\worker_interface.pyc", line 129, in get_work

  File "p2pool\work.pyc", line 243, in get_work

p2pool.util.jsonrpc.NarrowError: -12345 p2pool is downloading shares