Problems with saved games on other computer

[frognum]

I have some saved games from my dad's computer. I pass that scene before the computer room and the proyector ... but when I copied the saved games to another computer and I play to get to the kitchen, the room where you open the gates with the fire alarm doesn't look like it is originally:

The fuse box are closed, so you can't burn the can when you activate the switch on the wall.

The can is burning when you enter to the room ... and the alarm and the water from the seiling are on, but the gates are closed and you can't open them.

Please help me ... I don't understand what happens.

Thanks