[Zope] Problem with a calling a stored procedure which returns data

Hi I am trying to run a stored procedure from Zope against Sybase 11.0.3. However it is returning the following error Error Type: Error Error Value: ct_command(): user api layer: external error: This routine cannot be called while results are pending for a command that has been sent to the server. The stored procedure is supposed to return several records. I am using the SybaseDAv2. Thanks Austin