Visual bug in the profile (client)

Found a visual bug in my profile. Later I´ll ask some friends if they have the same (or you guys tell me!).

Let me show you.

This is how it´s supposed to look: http://www.bilder-hochladen.net/files/big/liap-2-c81e.jpg

This is how it looks for me: http://www.pic-upload.de/view-29426534/LoLProfile.png.html

Do you see the missing lining beneath the buttons?