5.0 64-bit address book attachment attachments pane missing backup beep bugs character set citation client color confirm connection center ding Draft drag export Filters freezing GMAIL gmail html IMAP imap IMAP folders install macros Messages no body of email Opera import pop.gmail.com certificate POP3 preview recover RegEx reinstall reply restart restore SEARCH smtp Sound sound tbk file Templates upgrade utf8 Win 10 windows 8 metro