UPS, how do i get it back...

Me and my girlfrind have started translating the vbulletin to danish, but now i have a little question.

I dont know if we did some changes in the settings, ore in the code.
But now when we write a new post, and pressing the.
(Bold), (italic) ore (underline), we dont get the popup window anymore.

And i cannot find it in the settings.