i am tring to link the discussions tab to a forum for that group. on te Group management page under Group Forums.
THere is nothing under the select forum the click add drop down.

What am I doing wrong

as 1.9.2
af express

Make sure you have selected a forum instance on the Global Group Settings page.

You need to enable the option in the "Can a group have discussion forums?" section, then select a forum group in the dropdown list.

Save when you are finished.

If you have created groups without this option enabled, you may just want to delete the groups and recreate them so that forums are automatically created with the correct permissions.

thanks,
I cleared everything out and it is working now.