i have a crossfire video cards, HIS H467QR1GH Radeon HD 4670 1GB 128-bit DDR3 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card x 2 but i get in tire and frustrade i whe to opcions in bf3 and i have nothing like expand only give me 1 or 2 monitors thank you for you coment