Hi Stuart,
I'm not a member of AVForums, and when I first glanced at the forums (after reading this post) I thought the design looked great. About an hour ago, I went back to have a look at the feedback of your users and I do agree with some of the things I've been reading. I find the design very harsh on the eyes (even when using Firefox). Using Chrome it's even worse because of the blurry font. I found it very difficult to read a few pages of text.
I'm confident these issues will be resolved in the near future, but I thought I'd give you some feedback from a non-biased perspective. Most people oppose change and I know how frustrating this can be as a forum admin, but I do think some of the feedback from your members is valid.