You may want to update your account and various account options to configure subscription settings forum time displays and other things.
Go to your User Control Panel (UserCP) and then click on Edit Options in the left hand column. Alternatively you can use this link
to go strait there.
The main options that many of you will want to change is the "Default Thread Subscription Mode" which is currently set to instant notification. If you don't want the notification emails sent, simply set that to one of the other options that suits your needs.
You will also want to set your time zone in the system as well as other communication and notification settings. Be sure to scroll down and hit "save" once you have changed settings.