5.25 case problem

Owainnub

Honorable
Aug 13, 2013
25
0
10,530
so i just brought a case (antect Eleven hundred) and i am wanting to buy a 5.25 inch drive on the front, i have removed the thing from the bezel, but i am currently stuck because there is something block the way. i can not take it off
if you are wondering what i am talking about
http://www.youtube.com/watch?v=DVYzmH9S9yA (the stuff at 1:39 on the case)
i can not seem to get it off haha


any help :)?