You probably have intel gma graphic card in it, those things are evil (from developer's point of view, anyways
), you will probably have no trouble playing new 2.5D adventure games, but i highly doubt that 3D will be a good experience (try playing Jack Keane demo, if it works, everything else should)
Also if the game uses opengl for rendering api, you can say good bay to it (penumbra for example), because of pour intel drivers.
