Amnesia Startup Error

[akeisato]

make sure you have the v1.2 update installed. It should work then...

I have the exact same problem: also that no matter what I've tried it keeps
giving me this error. I'm currently only running the demo (I don't like to make a purchase without testing it first.), and I did install the latest update. However now I require a serial code I've never heard of and don't have the slightest idea where to start searching for it.
Could it be that maybe my computer simply can't run this game?

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I've uninstalled everything Amnesia and re-installed only the demo. My drivers are still "updated" from the last time I tried to tackle this error. The exact error it keeps giving me is:
ATTENTION: System does not support const arrays in glsl!
Setting up G-Bugger: type: 0 texturenum: 3
ERROR: Frame buffer 'Deferred_GBuffer_Main' is not complete! Format is unsupported!
ERROR: Could not create frame buffer for Deferred renderer type: 0!
FATAL ERROR: Renderer #0 could not be initialized! Make sure your graphic card drivers are up to date. Check log file for more information.

The only other thing I can think of is that all of this is incompatible with my
card: Intel® G41 Express Chipset.

Other than that I'm completely out of ideas.