It's simply cropping the text instead of wrapping it. The one that shows properly just says "Sharing your Ethernet connection", and the one that doesn't says "Sharing your built-in Ethernet Connection" which is too long to fit on the screen...
i've found another typo though, in Front Row when prompted to eject a DVD it reads "Eject Disk" rather than "Eject Disc"... paltry, i know, but all the same..
Kinda found another bug/annoyance when you download a .zip file and open via the downloads stack it unzips on top of the .zip file so you have to drag it into an open space.