Thesaurus Fails After Upgrade to Apache OpenOffice 3.4

Why does the Thesaurus cease to function after I upgrade to OOo 3.4?

The problem is in the English language extension that is included in the EN-us version of AOO. The extension has a number of variants; Canadian, Australian and others. One of the variants is causing a conflict with the US dictionary. The solution is to remove all the English dictionaries except English spelling any hyphenation dictionaries & thesaurus 2010.08.16.

To Remove Dictionaries

1. Open AOO
2. From the Menu Toolbar select Tools > Extension Manager
3. Select the dictionary to delete

   Only select English variant dictionaries.

4. Click the Delete Button
5. Repeat steps 3 and 4 until English spelling any hyphenation dictionaries & thesaurus 2010.08.16 is the only English dictionary.
6. Close Extension Manager
7. Close and restart AOO

AOO should be restarted to ensure that that the changes take effect.