I've hacked Warner's computer and Curtis now has security level 3. I have looked at several walk-throughs and have done everything else I need to do.

I am now supposed to use my security card on a card reader by the glass door to the area by the elevator - but the security card will not interact with anything at all. I've spent the last two hours on what amounts to a pixel hunt trying to use the card on what seems to be a non-existent card reader that is supposed to be somewhere in the vicinity of that door frame. Click, click, click, click - but nothing, no lighting up, no access, game stalled.

Can anyone tell me exactly where this card reader is?

EDIT: NOW IN LEVEL 5

This game is so dark I can't see anything at all. I managed to get past the door, but now I am in level 5, in the alien world, and I am supposed to "go through a hole in the wall to the electrical room" only I can see no hole in the wall. Again, clicky, clicky, clicky everywhere, except this time it's a big area and there doesn't seem to be an appropriate arrow pointing to the hole in the wall.

Help please. At this point I just want to finish the game.