[ubuntu] 3 screens

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http://ubuntuforums.org – Hi, I have 2 gfx cards (geforce 260 gtx and amd 5450) they feed 3 monitors. However in ubuntu i can get this to work it only shows 2 screens. If I load the restricted drivers for either card it will display on that screen only. I also have an issue where if I use multiple screens on the top menu bar each screen has a duplicate of the indicators (system tray) how do I do this so it is on the primary screen only? (Hardware)