De­pend­ing on which op­tions you se­lect­ed, you might not see a change in the way the page looks. The changes are vis­i­ble in the source code though:

• Look at the gra­vatar im­age URL of a user with­out a gra­vatar. The plu­g­in works if the URL looks like [your site]/wp-content/uploads/avatar-privacy/cache/gravatars/[x]/[y]/[long SHA256 token]-68.png in­stead of http://1.gravatar.com/avatar/[other long MD5 token]?s=68&d=http%3A%2F%2F1.gravatar.com%2Favatar%2F[long MD5 token]%3Fs%3D68&r=PG. There aren’t two URLs in there any­more, on­ly one, and the de­fault URL looks the same for two com­ments with­out a gravatar.
• You should see the check­box on the com­ment form.

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Did you re­mem­ber to vis­it the dis­cus­sion set­tings page, ac­ti­vate Show Avatars? You have to en­able avatars for this plu­g­in to be able to do anything.

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