PoL stops responding on windows 7, please help :(

Hello,

I recently got a new laptop, Alienware M14x with windows 7 home premiun 64 bit and I'm now currently experiencing a problem with running PoL. I downloaded the vista/7 compatible viewer and tried to run it but still PoL stops responding after it tries to load up.
I am suspecting that it may be a problem with the nvidia drivers, though I updated them and I'm still having the same problem. I've tried everything I could think of but so far nothing has worked :(. Any advice/help would be greatly appreciated.
Here are some of the crucial computer specs:

Intel Core i5-2410M CPU
8GB of RAM
1.5GB Nvidia GeForce GT 555M with Optimus technology (I'm suspecting this may be the problem and there's no way I can turn it off)

P.S.: I tried running PoL with the integrated graphic chip and it still stops responding :(

Meh I found a solution, such a shame I got to disable the Nvidia card in order to play =/