For the Love of Jehovah, Help Me with Turok: Evolution

I’ve rented Turok: Evolution for PS2 (though I believe play is the same for all systems). I can’t get the first key in the first mission! I’ve found it, it’s on a rock across from another rock, but I can’t jump across to it – he just doesn’t go far enough. I’ve read several walkthroughs, and they all just say “jump to the rock.” What in the hell am I doing wrong? And two misses from that height and I’m dead and must start over. I’m going bananas! Help!

Okay, sorry everbody, I got it. I ended up having to change the controls in order to do it though.

Please go back to what you were doing.

You’re welcome.