It appears that Eidos have included an anti-pirate code snippet that disables Batmans glide ability if you have a cracked version of the game.
A pirate recently put his hand up on the official forum and announced his pressence
I’ve got a problem when it’s time to use Batman’s glide in the game. When I hold <Space> , like it’s said to jump from one platform to another, Batman tries to open his wings again and again instead of gliding. So he fels down in a poisoning gas. If somebody could tel me, what should I do there.
The problem you have encountered is a hook in the copy protection, to catch out people who try and download cracked versions of the game for free.
It’s not a bug in the game’s code, it’s a bug in your moral code.
And so we say that if you are naughty enough to use a pirated copy of Batman and then silly enough to ask for help on the forums before it is officially released then you deserve to be publicly identified
Chesheric_the_cat is the pirate in question, tut tut.