Those running Microsoft Office 2007 may have noticed the recent update to SP3. There's a small improvement that PDF/A users may appreciate.
Office 2007 SP2 included minor issues with the XMP in PDF files produced from the Microsoft engine which could cause PDF/A validators to fail the file. It's been reported to the PDF/A Competence Center that the latest SP3 release cures these problems, and the resulting PDF files are now validating happily for PDF/A conformance.
If you are running Microsoft Office 2007 and didn't get the update to SP3, ask your computer to check for it now, or visit the Microsoft Update website.