[CRITICAL UPDATE - Anyone using Office 2003 should install the critical
update as soon as possible. From PowerPoint, choose "Help -> Check for
Updates".]
Are you sure that the files you could not open had been most recently
opened/saved in Office XP? There is a critical update for Office 2003
which fixes a known problem with Office 2003 applications when opening
files created in Office 2000 or Office 27.
John Langhans
Microsoft Corporation
Supportability Program Manager
Microsoft Office PowerPoint for Windows
Microsoft Office Picture Manager for Windows
For FAQ's, highlights and top issues, visit the Microsoft PowerPoint
support center at:
http://support.microsoft.com/default.aspx?pr=ppt
Search the Microsoft Knowledge Base at:
http://support.microsoft.com/default.aspx?pr=kbhowto
This posting is provided "AS IS" with no warranties, and confers no rights.
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http://www.microsoft.com/info/cpyright.htm