I can not see the images in the preview

I can not see the images in the preview of the emails: there is a square with a red cross (even after told to let the pictures). How can I solve the problem? I have windows 7 Thank you Marco
 Non riseco a vedere le immagini nell’anteprima delle email: c’è un quadrato con la croce rossa (anche dopo aver detto di consentire le immagini). Come posso risolvere il problema? Ho windows 7 Grazie, Marco

Hi Marco,
could you please take a screenshot of this issue?
Also, are you running the latest version?
Which option do you have set up in Tools > Settings > Mail > Privacy?

Best regards,
Olivia