If you go to the parent board, you will not see the New Post button. You have to open the specific child board (Audio, General Hardware, Video) to see the New Post button.
I looked into a few groups to see where I might ask some questions related to more than one of my systems (a desktop and a server).  I wanted to ask about the desk top question first, but when I go into the desktop group, there is no "New Post" button.  When I went to this group (CustCareBoard), I saw the New Post button, and when I go to the Servers groups, I see a new-post button -- but not in desktop.  Why am I not able to post in the Desktop group?  Can you tell me how to fix it, or can you fix it?  Thanks much! L.A. Walsh 
Need to post a desktop question, but no "New Post" button.