Been searching for this thing for about an hour now and it's driving me insane.

When Dean asks you to activate the holograms that can protect him when he activates the wires, where the heck do you find the computer that switch on the 2nd Hologram? The marker is placed in a square on the top right of the map but I have no idea how to get there and all stairs/doors either lead to dead ends or other areas. If anyone knows what I'm on about please help because this is driving me insane.

Euhm I know I was stuck their aswell but can't remember it exactly...

Tried to check an youtube walktrough?

http://www.youtube.com/watch?v=7lDvYp4o5FY
I am not sure this part helps you (maybe next part will) but if this will not help nothing will =p.

You have to go through the ruined cafe, up the stairs, and out onto the balcony. Take a left through a hole in the wall. Boom, terminal.

Big kiss sir because you are awesome!!