I have set up Mail on my new iMac (OS X Lion) for two existing accounts, Tiscali and Yahoo. However, I can only see sub folders (draft, sent, trash) for the Yahoo account but not for the Tiscali account. I want if possible to view the other sub-folders in my Tiscali account if possible. I can view them on Mail on my iPhone 4, but not my iMac. Any suggestions please?