I'm running Windows 2000, MS Office 2003 Professional, and Office Compatibility Pack. My system has been running quite stable. In conducting the March Microsoft Updates, it updated with the following files:
Security Update for the 2007 Microsoft Office System (KB978380)
Update for the 2007 Microsoft Office System (KB977724)
Update for Microsoft Office Outlook 2003 Junk Email Filter (KB979771)
Security Update for Microsoft Office Excel 2003 (KB978474)
Windows Malicious Software Removal Tool - March 2010 (KB890830)
After conducting this update, I find that when I attempt to open a .docx file, I get "There was an error opening the file." error message. I went into Add/Remove Programs in Control Panel, but was unable to find KB977724 listed. I tried removing the Office 2007 Compatibility Pack and downloading it/installing it fresh, but to no avail.
Any suggestions would be greatly appreciated.