- Placid Platypus
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- Exalted Legendary Member
For Carnage Apply Within - Fatum Iustum Stultorum
"Do not mistake your rank and number for superiority. The oldest child may learn from the youngest."
I'm assuming you mean the first half-open door you encounter very early in the level. Ignore the door and move on until you locate the room with the pattern buffer on a raised platform. Here you will notice door on the other side of a pillar. Simply flip the switch near the entrance to this room and the pillar will raise, allowing you to access a door near the pattern buffer.
Of course, if that fails, feel free to clarify where you are in the level or try giving the Spoiler Guide a look-see.
[Edited on 06.22.2011 11:03 AM PDT]