We are using Exchange 2003 and a number of staff use Outlook Web Access. One particular member can only see unread email messages in their Inbox. Once a message becomes read, it disappears. I have confirmed that the emails still exist by viewing the account with Outlook 2003, and i have also confirmed it is just the Inbox, as other folders such as Deleted Items, Sent Items and sub folders have visible email in them.
I have tried deleting offline content, restarting the browser (Internet Explorer 6), and logging in on different machines, but the problem remains. I know i can change the settings so all messages in the Inbox remain 'unread', but this is not the best solution.