A more serious problem is what happens if you zoom your text at all, so it's anything larger than the (tiny) default size. Try it...most nested comments become a single vertical line of text, rendering them unreadable. I suspect someone has used pixels in the CSS somewhere where it really should be ems. I typically have text set to not display smaller than 14pts, because while I can read smaller text, I'd prefer to avoid the eyestrain thankyouverymuch. So basically the recent change has broken the comments view, since this wasn't a problem before. It should be standard practice while developing websites to occasionally zoom your text in and out to ensure you haven't improperly hard-coded something in a browser-breaking fashion.