[ubuntu] Video Driver Issues Gateway nv57h2u

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http://ubuntuforums.org – I just installed a fresh copy of ubuntu 12.4 on my gateway nv57h26u. However I have a feeling my video driver is not properly installed. When i click on "details" in the settings menu it says my graphics is "unknown". Under the graphics tab it says Driver unknown and experience standard. Anyone know how i can go about installing the prober video drivers for this laptop? (Hardware)