No preview sound when scrolling trough Loops and samples?

Hi Guys!
I just installed Cubase Pro 10, For some reason I dont understand, there’s no preview sound when I select the different loops and samples in the right sidemenu…
In order to hear the sounds I have to doubleclick and create a track to hear them…
Have any of you guys had the same problems? Is there something wrong with my audio connections all of a sudden?
What do you guys think?