If the forum is just a narrow strip in the middle of the screen you can zoom on in and the sizes will be similar to the old forums (at least they're similar for me but I was zoomed in a bit over there as well, the old forums didn't handle 1600x1200 very well).
You have no idea how wrong you are, In my case at least..
When Bethesda had its first big update they went from an orange and black color scheme to a purple and ivory one which, at least to me, was
horrendous and I seriously considered leaving. Obviously I didn't and when Bethesda updated the forums next they added the ability to chose various skins so if people didn't like the default they could change it.
Since the forums have gone live a lot of things have been tweaked and I imagine this process will be ongoing for a bit, although hopefully the devs will get the weekend off.
At the moment most people are being quite constructive with their criticisms which is great . . . the general set up isn't going to change but the devs aren't adverse to any changes - although as with the purple and ivory skin some things may have to wait an update.
Though a bit higher speed wouldn't hurt - the boards were faster before...
They're faster for me now than they were before. It seems like Firefox also has far more problems than Crome.
What was wrong with the old forum layout, again?
It wouldn't have worked well with the additional sections that were being added and it would have eventually caused problems if Bethesda stopped updating their IPB version. I elaborated on this a bit more in my last post but this thread is moving along so quickly it's hard to keep track of everything

Does anyone else not like how there are two different images for users now? I just set the non-avatar one as the same as my avatar.
Actually the IPB forums were originally set up like that, and it lasted for a long time (with only devs allowed to post their second pic). Eventually we'll probably see that fully disabled or opened up to the public (probably the former)
Whenever there's a big update we often get extraneous features that can take a while to get sorted out. The system admin have their hands full with the basics to deal with a lot of these little things and they may also leave them partially enabled to see if they want to do something with them later.