I have never had problems with Office 2008 but since using Office 2011, I have had Word 2011 crashing on me several times. Office 2011 was not installed over Office 2008, it was a fresh install on a macbook air computer which I bought last year (running on Snow Leopard). When I keep too many Word documents open in Word 2011, I suddenly get that beach ball of death that I dread and have not seen for such a long time. And Excel 2011 does not have the add-on Statistical Analysis which comes with the windows version of Excel 2010. Am I going to have to pay again for Office 201x to get features that are up to par with the Office 2010 version in Windows? Note: I have also installed all the latest updates for Mac OS X and Office 2011 so I am really wondering what is happening. Should I just use Pages from now on? What gives Microsoft?