It still looks the same.
My browser is set to full screen.
Do you see the longer lines also? I think it happened after the first post - I seem to remember looking at it before there were any replies, and I would have noticed if there was a problem then. This happens only rarely (but still annoyingly)
No, I'm not seeing a thing, which is a little bothersome (I've seen threads on which what you're describing happens, but it's almost always due to there being an image that's too large to fit on the screen without requiring horizontal scrolling.
If you could, can you tell me exactly which post on that thread is the first one that has a line that goes too far past the end of the browser? That is almost certainly the one that's causing you problems, so I'd like to see if I can find anything funky in it.
Also, what browser do you use, IE6, IE7, IE8, FF, Opera, Safari, or something I haven't mentioned?