Currently Being ModeratedMay 7, 2012 5:49 PM (in response to ktbug222)
If it is an Exchange account or an IMAP account, read/unread marks synchronize with the server and all clients set up to access it via IMAP or Exchange protocols. If one or more of the clients is using POP3, then unread marks do not synchronize. Same goes for the ability to see and file to folders.
How are you set up to access your work e-mail in Outlook?