I have had my Outlook 2007 open additional mailboxes via the advanced account settings. After updating to Office SP2, the list of emails in the additional account still displays, but I get a message for each mailbox item:
This item cannot be displayed in the Reading Pane. Open the item to read its contents.
After double clicking the message, I get a small error box which displays just
Cannot open this item. Unknown Error.
Also, if I try to re-add the mailbox in the Advanced tab of my account settings, I get an error message
The name cannot be resolved. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action.
However, the status bar indicates
Online with Microsoft Exchange, and I can both send and receive emails from my primary account. What could be going wrong?