Office for Mac version 14.0.2 tackles a handful of stability and reliability improvements, which Microsoft detailed in a support document. In particular, Office would sometimes refuse to open compatible documents that were sent from a third-party application, and the new Outlook could crash when importing .pst files containing categories that did not have names. The third major bug Microsoft squashed in this release involved the AutoUpdate utility asking you to close it during the update process which, of course, would stop the update from finishing.
Microsoft also updated Communicator, the corporate version of its Messenger chat client aimed at home office and business users. In Communicator for Mac 2011 version 13.1, Microsoft added a new desktop sharing feature. Like Screen Sharing in iChat, you can now share your desktop with your co-workers via Communicator.
Both updates are available via the AutoUpdate utility included with Office for Mac 2011 (presuming, of course, it doesn’t ask you to close it during the update).