Office for Mac and MacOS 10.7 Lion : Known Issues

Mac users who have downloaded and are using the latest MacOS 10.7 Lion, may have come across some compatibility issues while running Office for Mac.

Microsoft has released a knowledge base article where it has listed down the known issues while running the latest version of Office for Mac on MacOS Lion.

While Microsoft has been working closely with the Apple team right from the early days of Mac Lion, there are still two major issues which need to be addressed.

Communicator for Mac crashes when you send an IM or start an audio/visual call. This is one issue Microsoft will resolve and release an update to fix this.

Office for Mac 2004 will not run on Lion. Well,  because Lion no longer supports Rosetta(an Apple Mac OSX bridge technology that enabled applications such as Office for Mac 2004 to run on the latest chip architecture for Mac),  applications that relied on it will no longer function under the new MacOS. This is something that will remain.

Apart from these there a are a few other minor issues, that Microsoft is looking into, some of them being:

  • Excel 2008 or 2011 may crash when you move a sheet from one workbook to another workbook.
  • Word 2008 or 2011. The date format may display the year as 2 digits insead of 4 digits.
  • PowerPoint 2008 or 2011. Switching out of or quitting Slide Show in full-screen mode may result in inconsistent window behavior.
  • Entourage 2008 or Outlook 2011. You may be unable to import messages from Lion Mail.

Kb2586538 also states that some Web Applications may not correctly open the file in the rich client application. In such a case, Microsoft has suggested the following workaround, which will work with Safari or Firefox:

  • Quit Safari or Firefox.
  • On the Go menu, click Applications.
  • Select Safari or Firefox.
  • On the File menu, click Get Info.
  • Select the check box for Open in 32-bit mode.
  • Quit and open Safari or Firefox.

As mentioned, Microsoft is looking into these issues, so stay tuned!

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.