Vinnie, if you look at the bar across the top, just below where the New Thread button is, on the right hand side. You'll see a link marked Forum Tools, click on the down arrow and it will have a clickable link that says "Mark This Forum Read". That affects only the section you are in.
If you go all the way down to the bottom just above the area titled "What's Going On?" you will see a clickable link that says "Mark Forums Read". Click on that and it will affect all the sections and show them as having been read.
Hope that helps out.
