I have a new PC with 2- 6950's cards. I have display port to 1 of 3 32" TV's, other 2 using DVI to HDMI cables. The screen with DP is a full screen but other 2 TVs have a black border around out side edges on ends. I cant seem to make these two screens full size Can anyone help? They are Vizio TV's , 32" Runnin in crossfire eyefinity. HEEEEELLLPPP please