Microsoft offers Office 2004 Service Pack 1 (MacCentral) MacCentral - Microsoft Corp.'s Mac Business Unit (MacBU) on Tuesday announced the availability of Office 2004 for Mac Service Pack 1, an update for the latest Macintosh release of the company's popular productivity application software suite. The service pack "addresses potential security issues and bugs that user feedback played an important role in identifying," according to Microsoft. What's more, the new version features support for Microsoft Error Reporting Protocol (MERP), which allows customers to send bug reports to Microsoft anonymously.