|There are two different resolution settings...the monitor setting & the game setting. The monitor should always be run at the default/native resolution...apparently your's is 1440 x 900. The game setting has to be adjusted to what the video card can handle.|
Both the cards you're asking about are very old, but the 9700 is MUCH better than the 9000.
Radeon 9000 series
Radeon Mobility series