I have had this computer for two weeks and for much of that time I have been unsuccessfully trying to adjust the graphics.  The colors are super-saturated and just wrong.  Text is pixelated and rough.  Photos are pixelated.  I have it connected to a Sanyo 32" monitor with an HDMI cable.  I have tried every conceivable fix and all combinations of adjustments on the monitor, the graphics card and on Windows.  It is unusable.  I have had many computers over the years and never had this problem before.