SAP table extraction from BODS

Hi ,

When i am trying to extract SAP table data into BODS 4.1 ,  I am getting an dump in SAP with the description " "CONNECT_TO_GATEWAY_FAILED" and its happening in the program /BODS/RPT_STREAM_READ_TABLE .

Error text............ service 'XXXXX' unknown

Description............ NiPGetServByName: 'XXXXX' not found

I am getting this dump only when the extraction is scheduled in background mode ( Execute in background ( Batch) - Check box checked in BODS ) .

Thanks,

AJ.