Well, Intel extreme graphics is not listed as one of PlanetSide's supported video cards. So there may not be anything you can do about it. That is if you're talking about PlanetSide of course.
If you've updated ALL of your drivers (including sound, and motherboard), and installed the latest DirectX, then there's probably nothing left to do short of getting an nVidia or ATI based card. Which is something you should do if you plan on playing games anyway. It will perform much better than what you currently have, and they're fully supported by every game out there.
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