I stripped some text and added a diagram per request. Hopefully this version looks less "dense". Tom -------------- next part -------------- A non-text attachment was scrubbed... Name: agfocus2004.2.doc Type: application/msword Size: 155136 bytes Desc: not available URL: <http://lists.mcs.anl.gov/pipermail/ag-dev/attachments/20040601/63bb122a/attachment.doc>