Can't remove hard drive enclosure from my Antec 900 case

[Phokus]

Hey guys, i'm building a new system and i purchased the antec 900 as my case. For some reason, i can't remove the bottom hard drive enclosure from the case. I remove both side panels and i unscrew the thumbscrews on both sides and the enclosure will only go like maybe 20 percent out of the case and gets stuck... wtf? Anyone know why this is? Thanks!

 

[Tweakin]

Make sure the power connector for the fan is not stuck, along with the little dongy thingy for the speed adjustment...