An apparatus, comprising: a light source to generate a light beam; a scan drive circuit (118, 120, 216) to generate a scan drive signal in response to a video signal; and a scanning platform to receive the light beam and generate a raster pattern in response to the scan drive signal to project an image onto a projection surface, the light beam being scanned in the raster pattern in a fast scan direction and a slow scan direction orthogonal to the fast scan direction; wherein the scan drive signal comprises a first drive signal component corresponding to the fast scan direction having a relatively faster frequency and a second drive signal component corresponding to the slow scan direction having a relatively slower frequency, said second drive signal component having a sawtooth waveform; wherein the sawtooth waveform has sloped portions, each sloped portion corresponding to a scan of the light beam in the slow scan direction across the projected image; wherein said scan drive circuit (118, 120, 216) is capable of reducing a magnitude of the second drive signal component, compared to a sawtooth waveform of the second drive signal component in an instance in which no keystone distortion correction is performed, at a point or points in time when the light beam in the generated raster pattern is at a portion of the projected image where the projected image would otherwise be stretched due to a keystone distortion, thus at least partially unstretching the projected image, wherein said point or points in time is/are (i) when the light beam in the generated raster pattern is at the top or at the bottom of the projected image if the slow scan direction extends between one of the top and the bottom and the other one of the top and the bottom of the projected image, or (ii) when the light beam in the generated raster pattern is at a side edge of the projected image if the slow scan direction extends between the side edges of the projected image; wherein the reduction of the magnitude of the second drive signal component is at a first end of each sloped portion while the magnitude of the second drive signal component at a second end of each sloped portion is not reduced; and wherein said first end of each sloped portion corresponds to said point or points in time when the light beam in the generated raster pattern is at said portion of the projected image. a light source to generate a light beam; a scan drive circuit (118, 120, 216) to generate a scan drive signal in response to a video signal; and a scanning platform to receive the light beam and generate a raster pattern in response to the scan drive signal to project an image onto a projection surface, the light beam being scanned in the raster pattern in a fast scan direction and a slow scan direction orthogonal to the fast scan direction; wherein the scan drive signal comprises a first drive signal component corresponding to the fast scan direction having a relatively faster frequency and a second drive signal component corresponding to the slow scan direction having a relatively slower frequency, said second drive signal component having a sawtooth waveform; wherein the sawtooth waveform has sloped portions, each sloped portion corresponding to a scan of the light beam in the slow scan direction across the projected image; wherein said scan drive circuit (118, 120, 216) is capable of reducing a magnitude of the second drive signal component, compared to a sawtooth waveform of the second drive signal component in an instance in which no keystone distortion correction is performed, at a point or points in time when the light beam in the generated raster pattern is at a portion of the projected image where the projected image would otherwise be stretched due to a keystone distortion, thus at least partially unstretching the projected image, wherein said point or points in time is/are (i) when the light beam in the generated raster pattern is at the top or at the bottom of the projected image if the slow scan direction extends between one of the top and the bottom and the other one of the top and the bottom of the projected image, or (ii) when the light beam in the generated raster pattern is at a side edge of the projected image if the slow scan direction extends between the side edges of the projected image; wherein the reduction of the magnitude of the second drive signal component is at a first end of each sloped portion while the magnitude of the second drive signal component at a second end of each sloped portion is not reduced; and wherein said first end of each sloped portion corresponds to said point or points in time when the light beam in the generated raster pattern is at said portion of the projected image.