Office 2011 installs some duplicate fonts that are older than the ones installed by Apple. You can find these in the Library/Fonts/Microsoft folder
Andale Mono
Arial Black
Arial Narrow
Arial Rounded Bold
Comic Sans MS
Georgia
Impact
Tahoma
Trebuchet MS
After you delete these, you need to nuke font caches. Font Nuke is great for this. Additional help:
Font Management
Testing in a new User will quickly tell you if the problem is system wide or if it's your User's folder that contains the problem.
CREATE A NEW USER
Go to System Preferences --> Create a New User in Accounts. Switch to the New User by logging out/in or use Fast User Switching.
Open each Office app and let it build it's font list. Quit and restart a couple of times. You should see a speed up after the first launch.
Do you still see the issue?
If yes, then the problem is with your base files.
If no, then the problem is in your User's folder.
I
f the problem is in your User's folder....
Remove these files:
1) Quit all Microsoft applications.
2) Track down all instances of pre-2011 Normal template on your computer, and drag them to your desktop.
- Office X: The Normal file is located in the "Templates" folder in your "Microsoft Office" folder.
- Office Word 2004 moves the Normal Template to live in the Microsoft User Data folder by default.
3) Find and drag the file Normal.dotm to your desktop. Unless you have moved it, it should be in
~ /Library/Application Support/Microsoft/Office/User Templates/
4) Drag the entire Microsoft folder to Desktop from User/Library/Preferences/
5) Now re-start Word 2011 and it should be OK.
Additional help troubleshooting.
Troubleshoot Office
For help with Microsoft Word for Mac:
http://word.mvps.org/Mac/