Go to display properties ->settings -> advanced -> GeForce 4 MX 440 -> additional properties -> 3D anti-aliasing. I think that's it anyways, I'm not at my computer right now. It should be somewhere in the display properties tho. If you're using the manufacturer drivers then look in the manual for the setting.
__________________
CPU: Intel Core 2 Quad Q9450 @ 2.66 Ghz (Yorkfield) Mobo: Intel DX48BT2 Memory: 2048 MB PC10600 DDR3 Videocard: PNY Geforce 9800 GX2 PCIe w/ 1024 MB GDDR3 Soundcard: On-board SigmaTel High Definition Audio Hard drive: 300 MB Maxtor & 1 TB Hitachi Optical drive: LG GGW-H20L (2x BD-R DL) OS: Microsoft Windows Vista (32-bit)