My graphics card doesn't work!?

I got a new desktop recently, with a Intel(R) HD graphics card. The first game I downloaded was minecraft, and it didn't work, then I tried slender and it didn't work! Why isn't it working!? The card is brand new! Is there something I can do to fix it?
Update: When I downloaded and started minecraft, on the screen it said:
Bad video card drivers!
Minecraft was unable to start because it failed to find an accelerated OpenGL mode.
This can usually be fixed by updating the video card drivers.
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