Milestone 1 Multimidia Station Issue

[AdrianoSG]

Hi,

First of all, sorry about my english, I'm from Brazil.
I have a Multimidia Station that came with my Milestone 1.
But, somehow the energy plug on the back is not working properly, and I'm trying to open it to fix.
I only found 4 screws on the bottom of the dock, but still doesn't open.
Any help of how I'm going to open???

Thanks.