Open link in new window doesn't work?!

Hello, first, you make a great work. The widget ist awsome but I have one problem, that I don’t clear by myself. The problem is, that when I set the hook at “New Window” right behind the link below the picture I would like to link, that not realized it. When I klick on one of my sliderpics they open the link in the same window. How can I remedy that issue?

Best regards from Germany, stilogreen.

http://ww.wp.xz.cn/extend/plugins/ml-slider/