screen saver does not change on windows7

I have just downloaded a screen saver from the Net (don't remember the webpage) on my PC; but now I can't change it. When I go to <control panel, change screen saver>, and I click on any wall paper, it gives me the warning: "this screen saver can not run because it requires a newer video card or one that's compatible with Direct 3D."
Anybody knows what that means? BTWY, my PC is only one month old.

Thanks in advance for any helpful ideas.

 

It would appear as the error denotes that your video card does not support Direct 3D. Click the start orb and type msinfo32 Click the { + } next to Components and then Display. Post the make and model of the card.

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