1. A method for detecting a still pixel in a liquid crystal display (LCD) overdrive system, said method comprising: a) receiving a first image data for a first image frame; b) predicting a first display value based on said first image data and a prior state of a display; c) compressing said first display value; d) storing said first display value in a buffer for at least one image frame interval; e) receiving a second image data for a second image frame; f) compressing said second image data; g) comparing said compressed first display value to said second compressed image data; and h) designating pixels within said second image data as still pixels when their compressed first display values are not substantially different from corresponding values in said second compressed image data.