If that does resolve the problem, it means that you need to get the latest
update.
If you have Office 2004, download and install the latest Office 2004
update, which is Office 2004 Service Pack 1. Service Pack 1 includes a
number of fixes that are documented in this article on the Microsoft
Knowledge Base:
<
http://support.microsoft.com/?kbid=883951>
In Office 2004, use Microsoft AutoUpdate to get the latest updates. From
any Office application, go to Help > Check for Updates (or manually launch
Microsoft AutoUpdate from the Applications folder). If any updates are
needed, they will display in a sheet, at which point you can check them and
press the "Install" button to download and install them.
Updates can also be found at the Microsoft web site:
<
http://www.microsoft.com/mac/downloads.aspx#Office2004>
If you have Office X, download and install the latest Office X update, which
is 10.1.6. It's available from Microsoft.
<
http://www.microsoft.com/mac/downloads.aspx#OfficeX>