If you have searched the internet looking for a reason why PowerPoint crashes when you start typing anything, and you happen to be running in Windows 7 via BootCamp on the Mac, the fix is simple:
In Control Panel, click on “Change keyboards or other input methods”:
In the Region and Language dialog box, click on the Change keyboards… button:
Finally, add the English US Keyboard by pressing the Add button:
That’s it! Seems odd, but it works!