Ahh! Well, I understand the weirdness, with what I saw vs. what you guys saw. My account was setup to use a test template (identical to what you guys are using) for the forum style. When I used FireFox my login wasn't cached, so it used the default.
When I switched to the regular style, I saw the same issues. I went and compared the style source files, and nothing was significantly different. So, I went to have the forums "refresh" the cache. That didn't quite help. But then I MANUALLY wiped away the cached style/template files. This seems to have fixed the problem for me in all browsers.
How about you all?
I suspect that it was actually something about how I did permissions on some of the directories. I changed how I'm doing file permissions when I moved to the new server (back in mid January), which I could see causing complications if something was created with just the right timing. My guess is, this happened. Blowing away all the cached style files forced the web server to recreate the cache, which would have all the right permissions. Hopefully, permanently so.
So, is it looking better?