Just a couple suggestions from my first 30 seconds using it... I understand that this is likely still somewhat a work in progress, but I'm gonna make these anyway...
1> Could we get a better delineation between the category selections at the time? And perhaps re-do them altogether. The raw text on Blue is sorta boring compared to the nice logo above it, and the fact that they're buttons isn't clearly and plainly obvious.
2> The "New Message" text that you get on the middle-left is no longer a high-visibility Red that it was before.
3> The new design no longer scales fully to a 1680x1050 resolution. It leaves a solid inch or two on each side, whereas it utilized the full screen width before, leaving a good 20% of the screen un-used. The Forums still utilize the full width, making a harsh, less-professional-looking, integrated transition between them.