Is this trial version? Have you activated it? Has it expired?
Applies to
Microsoft Office Word 2003
Microsoft Word 2000 and 2002
If you cannot make changes to a document, your Word program might not
be activated, the document might be locked for editing or password-
protected, or you might be trying to modify a document or text in a
form that is protected.
Note: You cannot edit a document that is open in Word Viewer, but you
can copy text to the Clipboard to paste it in other applications.
1. This command is not available because the document is locked for
editing
If you see the following message when you try to modify a document in
Word 2003 or Word 2002: "This command is not available because the
document is locked for editing," your Word program might not be
activated. To check, do the following:
On the Help menu, click Activate Product.
If Word is activated, a message tells you that the product was already
activated. If Word is not activated, the Office Activation Wizard
appears to guide you through the activation process.
Note You can open a Word document even if the program is not
activated, but you cannot use many commands and you cannot save the
document.
2. The document is locked for editing by another user
If you see the following message when you try to modify a document in
Word 2000 or Word 2002: "The document is locked for editing by another
user," Word previously might have shut down improperly while the file
was still open.
The document also might be locked for editing if the original version
of the document is already open, or if the document is shared over a
network and another user opened it. This applies to Word 2000, 2002,
and 2003.
Note If the Group similar taskbar buttons option is selected, the
original version of the document might be open without your realizing
it. Click the Word button on the Windows taskbar to see the names of
all the Word documents that are open.
3. Your document is protected by a password
If the document owner protected the document with a password
(including a blank password), you might be restricted to read-only
access unless you enter the correct password. If you forget or lose a
password, you cannot edit the document.
This modification is not allowed because the document is locked
If you see this message at the bottom of the application window when
you try to modify a document: "This modification is not allowed
because the document is locked," the document is protected with an
editing restriction of No changes (Read only) or Comments in Word 2003
(or a restriction of Comments in Word 2002 and Word 2000). The
document author used the Protect Document features to restrict
editing. Menu commands also might be unavailable, depending on the
permissions that were granted to you by the document author.
Note When you open a document that is protected by Information Rights
Management (IRM) in Word 2003, you might have permission to view the
document but not to change it. When you open the document, the Shared
Workspace task pane opens by default on the right side of the
application window. In the task pane, click View My Permissions to see
your permissions
http://office.microsoft.com/en-us/word/HA011406121033.aspx