Penumbra Series graphical issues

[pyrokin]

So I bought the Penumbra Series after making sure my laptop could run it. It can, which is great; however, for some reason when I'm playing the torch doesn't light up (however the glowstick lights up better,) and when the room or an object is slightly lit up there'll be rainbows. Yes, fucking rainbows, all over the textures, no matter what surface. Please help.

Also, I have tried fixing the gamma, contrast, anything visual.
Thank you for responding when you can.

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EDIT: Issue resolved

 

[Vonnis]

Have you tried updating video drivers and such?

 

[pyrokin]

It apparently has the most up-to-date for my video drive, I can check again but still.

 

[Tharwen]

I used to have that sort of problem with source games on my old crappy laptop.

Do you have an Intel graphics chipset rather than a graphics card, by any chance?

 

[pyrokin]

Actually, yes, but I finally fixed the issue. If you can though, please tell me what could be wrong with it when I try the Amnesia demo. When I open it, it says fatal error. Please help on that issue if you can as well