Operating System: Microsoft® Windows® 2000/XP/Vista You may encounter online connection issues under Vista. In that case, you'll need to set the application compatibility mode to "Windows XP 2". This can be done by right-clicking the desktop icon for the game, selecting "Properties" from the context menu, going to the "Compatibility" tab and selecting to run this program in compatibility mode for "Windows XP 2". Processor: Intel® Pentium® II 1.2 GHz or better Memory: 512 MB RAM Hard Disk Space: 820 MB Video Card: DirectX 9.0 AGP with 32MB or better with HW-T&L Sound Card: DirectX-compliant DirectX® Version: DirectX version 9.0b or higher (included)