:D Hi, I am stuck on the mission where you have to change the colour of the cards. I've been in the freezer room and ran about abit, but it didn't seem to work.
Can anyone give me any help with it?

Thank you.

You just need to wait. It will happen sooner or later.

I hope you've inserted the room temperature version of the key first? I don't think the card changes before you do that. If you have, just stay in the freeze room for a short while and it'll change. Don't move too much.

I don't know if it's different on different difficulty levels, but it takes quite a while for it to change. And you have to make sure you have the right card, at first it's orange.

i crouch... simple as that, and i did insert the room temperature card into the laptop and failed first though

Simply stand still or crouch down. Dont move a lot. The PAL keys take a while to change their current status (normal, hot, cold) so be patient.

I always equipped it and laid down on the ice and it happend pretty fast. But I did try once to cool it before I got to the place and it didn't work becaues they wont change until you insert the previous one, thought I was going to save some time.

ok there is a much easyer way of doing this but you must hang from one of the balconys(i foget witch =p) and drop, then there are two pipes shoot them one is liquid nitrogen the other is hot air or somethin lol and vala you have heated up your key card and frozen it =]

Make sure the PAL is actually equipped...

I have never heard of that before. Are you talking about one of the balconies in the hanger where Rex is?

fox die must have been talking about Twin Snakes. But I'm not sure if the OP was playing Twin Snakes since it wasn't posted there. My guess is the original, which all you have to do is stay put for a while as stated.

Would OP please state which version?!

here's a nice little tutorial ;)

you just need to change the temperature as otacon said. first the normal temperature is inserted when you get the key back from the sewer, then you need to freeze it in the vulcan raven room, then heat it in the place with the lava.