One of our users can not see the inbox folder in her outlook 2007 email client. I initially started by setting up a new mail profile for her, but it had the same issue. The same is also true if you view the mailbox in OWA.
However in Outlook 2007, if you click on the root of the mailbox folder to view 'outlook today', the inbox is there, but shows no sub-folders. It is the same for any machine that I open her mail profile on. The 'folder size' button shows the inbox & sub-directories in both the local folders and on the server.
I haven't seen this problem before so was wondering if anybody else had come across this. The mail-server is an SBS2008 setup with Exchange 2007.