Okay, that proves it's not just an issue with cache files. That it is only Office does indicate something wrong with that suite. Close all Office apps. Go to the Preferences folder in your account and move the folder "Microsoft" to the desktop. Launch Word and test the text in question.
If all is okay, then something was wrong in the preference files. You'll then need to reset anything in each apps prefs that was not the default settings. Otherwise, try the following:
1) If nothing changed, then quit all Office apps and move the "Microsoft" folder back to the Preferences folder so you don't have to reset anything back to your preferred settings.
2) Create a new guest account. Login to that account and see if the same thing happens.
3) If it behaves normally in the test account, then something is wrong in your normal user account. Just not sure what yet.
4) If text is still displaying incorrectly, then either Office is damaged, the OS (or its fonts) are damaged, or both.
If the last is true, then
BACK UP all Office data you've created, including the "Main Identity" folder in your user account, which is your Entourage database, if that's what you use for email.
Run the "Remove Office" tool on the Office installation CD to completely remove all traces of Office from the hard drive. Then reinstall Office and apply all available updates. Restore your Word, Excel, PowerPoint and Entourage data.
If after that, Office
still behaves incorrectly, then the OS is suspect, or at least its fonts. You can restore just the fonts OS X comes with by following the instructions at the bottom of
Font Management in OS X.
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