Ubuntu 12.10 multi-monitor setup isn't working

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http://askubuntu.com – I have tried everything I can think of and can't get a multi monitor setup working. Can anyone please point me in the right direction? My setup: Asus G75VW with nVidia 670M (supports 3 external monitors via VGA/HDMI/DP - http://answers.yahoo.com/question/index?qid=20121023062214AA7o5jc) Samsung 27" LCD (2) LG 22" LCDs lspci results: 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor PCI Express Root Port (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series C (HowTos)