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On the Right or Top Panel click the “Forum Activity” link.
Now click the “Subscriptions” link.
Here you will see all the forums you are currently subscribed. To unsubscribe from a specific forum, simply click the “Red X” beside the Forum you wish to unsubscribe and you will no longer receive notifications of New Topics/Replies to that particular forum.
Note 1: If you create or participate in a Forum Topic you will automatically be notified, irregardless if you’re subscribed to that Forum or not.
Note 2: It is highly recommended that you DO NOT unsubscribe from the “Announcements Forum”. Otherwise, you will miss important information like this.