Thanks for pointing this out Poser and GoClimb, I just checked the various ways to get to the dicsussion boards from the home page. There are 4 now.
The top menu seems to work correctly all the time.
Here are the results:
top menu climb -> Just the climbing boards
top menu bike -> just the bike boards
top menu hike/run -> just the hike/run boards
However, in the Left menu with titles of select threads from each forum each link goes to the selected thread but in a forum where ALL the boards (ClimbNYC, Gunks Climbing, Bike & Hike/Run) are visable when you you go to the main index.
So if you want to filter your view to only one set of discussions please use the great new nav bar at the top of gunks.com. Perhaps Evan will change the way the left menu links to the forums in the futue.
If you want to join in the discussions regarding city bouldering and other NYC stuff while also viewing all the gunks boards you can visit ClimbNYC.com