On Thu, 30 Jun 2011, Dieter BSD wrote: > Section "Monitor" > Identifier "Monitor2220" > VendorName "Dell" > ModelName "ST2220T" > HorizSync 30.00-83.00 > VertRefresh 56.00-76.00 Remove the HorizSync and VertRefresh settings, they are only needed if the monitor is ancient or has an incorrect EDID.