I don't know if it is only me or not, but sometimes forumdisplay pages' look messes up for me. This only happens in firefox, I didn't see it in IE. It is also sporadic, it sometimes occurs and MIGHT go away when page is refreshed. Wanted to report it FYI.
Yeah, this appears to be a Firefox bug. I've seen it very infrequently. I think it has to do with when it decides to render out a partial page (or break rendering). It happens sporadically, which makes trying to fix it quite hard. We already have a table-layout: fixed rule on each row, and that would've been my only guess for a workaround.