One big suggestion I can make, is to not have Direct-x and "other" api's all in one forum, that's gonna be a huge mess. If anything, components inside direct-x itself should have their own forums.. directsound/music can just go in regular "sound & music", and dplay would just go in multiplayer forum. but i think the graphics forum should be graphics/directdraw, and there should be a separate direct3d and a separate opengl forum, being those are huge topics themselves. i say this now being the forums have little/none messages so far.
you should make this message window's width bigger i feel like i'm typing in an LED window, and you should move the message icons to below the message, so its not a pain to tab from the name/subject/message fields.. also, you could really use some better icons