Sticky Keys in Microsoft Office
If you hold down certain keys in Windows long enough, it'll turn on what's called Sticky Keys. Though it's not a function of Microsoft Office, it occurs to many users while they're using Office, so I thought I'd post how to get out of it.
In Windows, go to Start Settings Control Panel, and click on Accessibility Options. Uncheck the Use StickyKeys box. You may also want to click Settings (next to it) and uncheck Use shortcut so that it doesn't occur again.