CPU: Intel® Core™ i5 or better RAM: 4 GB Operating System: Microsoft Windows XP Professional * or Windows Vista , Windows 7; all 32-bit or 64-bit running as 32-bit. Graphics Adapter: PCI-Express, minimum 256 MB RAM, Direct 3D supported.  Guidelines for Video RAM Requirements:  20+ simultaneous Video Channels: 512 MB  50+ simultaneous Video Channels: 1 GB