Scca and Triskele, you do realise that we just upgraded to vBulletin 4.0, and have only been operating like this for a few hours now? There are bound to be some changes. Just have a little patience, as Bram said.
Of course it was known you guys were updating. However I couldn't find any indication anywhere on the site of it still being worked on or if it was finished. If its not done then of course its understandable. Design changes are always met with some criticism. You guys should have been expecting a thread or two. No reason to take it personal. That is why I said above its "just my opinion".
My comment on text size is for the thread listings. Inside the threads the posts look good.