1. Run Setup from another Office installation disk.
2. Select “Custom Install”.
3. You’ll have to insert your Product Key.
4. Turn Off ALL of the product installations. (Right-Click icon and select “Not Available”)
5. Under “Office Shared Features”, set “Proofing Tools” to “Run all from My Computer”  This should install the English, French, and Spanish dictionaries.  English alone would probably solve the problem,Still have the problem?? if yes install windows live mail to fix the issue for more info pls visit
   http://support.microsoft.com/kb/932974

Still no luck??? download install spelloe_setup and restart ur pc.