Why in Word 2003 can I not save a file that has been changed?

[mode61]

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mode61

 

[Suzanne S. Barnhill]

Is this a trial version of Office 2003 that has expired?

 

[mode61]

No--it is a full version of Microsoft Office 2003

 

[Suzanne S. Barnhill]

Has it been activated? Is the document read-only?