I have not experienced that problem before, but I have my subscription preferences set to not email me any updates.

Please double-check your subscription preferences to make sure it's still set to email you updates:

Click this > http://www.blackhatworld.com/blackha...do=editoptions

Then under Messaging and Notification > Default Thread Subscription Mode, check to make sure your default subscription prefs are set properly. In your case, daily.

If that doesn't work, it may be a bigger problem than I thought. And until the alleged problem is fixed, you'll have to check your subscribed threads manually:

http://www.blackhatworld.com/blackha...bscription.php