Hotfix KB976542 is available for download:
The Hotfix Package for DPM 2007 (KB976542) addresses the issues as summarized in KB976542 - http://support.microsoft.com/default.aspx?scid=kb;EN-US;976542.
This Data Protection Manager Update Package consists of three separate updates. Note: Depending on your configuration, some updates may not apply. Please see "Installation Instructions" for details.