Linn Genki - removing the cover

Is there a trick to removing the cover on the Linn Genki? I took the 4 screws out and it slides about a 1/4 of the way off and then appears to get hung on something.
I had an Ilemi and it seems that once you slid id back you need to spread the sides very slightly to get it slide the rest of the way. But be careful I can't remember exactly.