Error message in configuration page is broken

before
![before](https://f.cloud.github.com/assets/19996/1947365/d4d8e444-8050-11e3-9acb-c4be426bb4e2.png)

after
![after](https://f.cloud.github.com/assets/19996/1947368/dd79386a-8050-11e3-93f2-079f61ea3a17.png)