I have been using sugar 6.4 for a few years and today the email section just vanished!
Everything else is there and whilst I can go into 'Emails' the nav is available but no content other than that.
Clicking 'check email' 'compose' or 'settings' tabs in email now do nothing.
Everything else looks the same and I can access all other sections OK.
I have logged in as Admin and user and using different browsers = same result.
Can anyone help on this?