word 2010 spell check not working

i have an existing document. when i write an incorrect word, the red squiggly line doesn't appear. i open the document. click FILE > OPTIONS, PROOFING and "check spelling as you type" and "mark grammar errors as you type" are enabled. why? help ?

if i open a new document, i get the squiggly lines.
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Raheman M. AbdulSenior Infrastructure Support Analyst & Systems DeveloperCommented:
make sure you have the similar settings.
proofing settings
Raheman M. AbdulSenior Infrastructure Support Analyst & Systems DeveloperCommented:
1. Make sure the speller EN-US add-in is enabled.
(word options - Manage - ...)
2. Select right language (English ) and clear "Do not check grammer and spelling" if checked.
(review -> Language -> Language Group -> Set Proofing Language)
It is possible to supress checking for all or part of a document.

Select the document text (Ctrl + A). Open the Language dialogue via Review tab, Set Language button and make sure that the 'Do not check spelling or grammar' option is not ticked.
Eric FletcherCommented:
This can also happen if the language setting is different to what has been set in the spell check options. You can easily check this: click within one of the underlined words, then press Shift-F1 to display the Reveal Formatting pane to show the language attribute assigned for the selection.

If the language in use is not what you expect, either change the spell check options (File > Options > Proofing), or select the text and then use Review > Language > Set Proofing Language... to set the language you want.

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