I think that you are zoomed in.
Yep, this was my initial reaction too.
But to be sure I went ahead and used an online browser test thing, testing wiki frontpage with 30+ different browsers including all the Firefox versions and I wasn't able to replicate this "bug" so the problem is most likely your system.
Go to View -> Zoom -> Reset .. and see if that fixes it.
Tried that - it had no effect. I even used the 'zoom out' option, and instead I got the same issue - no matter what the zooming resolution is, the Featured articles
box seems to refuse to adjust accordingly:
After following SG's advice:
After zooming out 3 times:
Using Internet Explorer (!):
...Thanks for your assistance guys - granted, the wiki still looks great despite my computer being stupid. Ugh. I guess I should resort to Internet Explorer when it comes down to viewing the wiki?
(I need to figure out if my computer resolution screen is messed up, and how to 'default it' regardless of the conditions. Hm...)
...I hate Windows Vista.