Hi Chris,
You can use the report /SAPAPO/TSTREAM_EFF_CHANGE to overcome this issue. For more details on this issue you can go thru this link
http://help.sap.com/saphelp_scm50/helpdata/en/31/94fd9571df11d3bfb20000e83235ee/content.htm
Hope this helps.
Rgds,
Kiru