[ubuntu] xorg.conf for dual monitors in 12.04LTS

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http://ubuntuforums.org – Hi, I'm trying to set up dual Dell Ultrasharp u2311h (23 inch, 1920x1080) monitors with my ubuntu 12.04 partition. I'm running a Radeon 7970HD graphics card with the fglrx drivers (from the ati website), and for some reason my xorg.conf file keeps messing up. Every time I back up xorg.conf, delete it and reboot it seems to works fine. The only problem is that every time I reboot after that, it tends to hang on a black screen with a blinking cursor, forcing me to manually reboot into safemode, delete the file and reboot again. Does anyone have any idea how to properly set up the xorg.co (Hardware)