When deleting an email from my inbox, the next unread email below changes to a "read" status - no longer in bold font. The same thing happens when I move an email to a subfolder. This also happens when a specific email is highlighted in the inbox list and the down arrow key is used to move to the next unread email. As one uses the down arrow key to move further down, unread emails in bold also change to "read" status - no longer in bold. As a result one forgets that those emails have not been read and can easily be overlooked.