vbulletin-chrome.css

[kNeo]

Assuming there's not too much customizing of vbulletin-chrome in your theme, just revert it to default, and then in additional.css add some padding or margin or whatever. It's a really simple thing to fix, like adding

.forumhead h2 a {margin-left:30px!important;}

to additional.css or whatever. currently it looks like your theme is using "text-indent" to accomplish that, I'm not sure why it would stop working for 4.2.1 honestly, but of all the problems you could have it's pretty minor.

ps: your notice text is black on a blue, which looks really bad - http://www.kupax.com/files/21523_c1d0p/noticeblah.png - might want to fix that.