File Adapter - just polling...not sending file.

I have configure the file addapter when I run it all that seems to happen is continuous polling:

I have the following paramters:

1. file adapter java class

classname=com.sap.aii.messaging.adapter.ModuleFile2XMB

mode=FILE2XMB

1. Integration Engine address and document settings (example, see docu)

XMB.TargetURL=http://xyz05:8000/sap/xi/engine?type=entry

XMB.SenderBusinessSystem=ExtAdapterSender

XMB.SenderInterfaceNamespace=http://sap.com/xi/xidemo

XMB.SenderInterfaceName=ExtAdapterSenderIF

XMB.ReceiverBusinessSystem=ExtAdapterReceiver

XMB.ContentKind=B

#XMB.ContentKind=T

#XMB.ContentType=application/xml

XMB.ContentType=text/xml

#XMB.ContentType=text/plain

XMB.QualityOfService=EO

##File Adapter specific parameters (example, see docu)

file.sourceDir=c:/TempFileTran

file.sourceFilename=Materials.xml

file.processingMode=setAttribute

....however if I change any of the XMB paramters it has not affect....I have reinstalled the file adapter several time but it makes no difference.

I would expect that is I changed XMB.TargetURL to some invalid value it would error! Moreover if I change the file name to one that does not exist I would expect an error but I just get "polling".

Thanks

Patrick