...because no mention was made of that (by the manufacturers) they get my one star review.Here are the minimal system requirements so the rest of you don't buy a program that won't run on your system.1. Internet connection required.2. CPU; Pentium 4/ 2.4 Ghz single core processor3. RAM; 1 gig4. VIDEO CARD; DirectX 9.0c compliant video card 128 mgs RAM/ Nvidia 6600 or better/ ATI 1300 or better, excluding ATI x1550,5. SOUND CARD; 100% compatible with DirectX 9.ocsix. 8gb free space on the hard drive.7. Windows XP/Vistabye.