mark all messages read

Is there a way to mark all messages "read" when there are no new posts without opening each one?

Ummm - for me, the tread title is in boldface if there are unread posts, and not otherwise.

I know that. I am looking for a way to remove the bold lettering in all messages after I have read the ones I want to

Within each forum listing, at the top/right is a drop down box 'Forum Tools' - Just select ' Mark This Forum Read'

You can also mark the entire forum as read by using the button at the bottom of the main forum index page.

Or from Quick Links menu at the top.

Or you can read all the threads...:p

Thank you for your help!