Hi Chuck,
Like John, I used the New Posts link.
But to your point, the color of the icon on the left of each forum should also be an indicator of New and Old posts to you.
//heartlandowners.org/images/new_old.jpg
Above is what I just saw when I scrolled to the bottom of the forum. The icon with the orange color in it indicates that it is a post I have not read.
That said, I can't say that it works as it is supposed to all the time. Sorry if it does not. After the rally, I plan to do a forum upgrade from v3.50 to v3.54. Mostly security updates but usually a few bug fixes as well.
As a side note, soon, I plan to experiment with those New post/Old post icons. My hope is to create a custom icon for each product. For example, a Bighorn "horns" icon for all the Bighorn categories. One in "some" color for New posts and one in monocolor for Old posts.
See you at the rally Chuck.
Jim