A method of displaying a video based on a video signal by means of a projector, said projector comprising: - a color wheel comprising a plurality of color segments adapted to generate a sequence of colors having a color changing frequency; - an image display device adapted to display said video by means of a sequential color representation having the color changing frequency; and, - a high-pressure gas discharge lamp, said method comprising the step of: supplying the lamp with a square-wave pulsatory alternating current (I0, I10) having a cycle (T0, T10) and composed of a square-wave alternating current superimposed with a pulsatory current, the pulsatory current comprising first current pulses (P1, P3, P10, P40), each of which ending after a half cycle before a phase reversal of said square-wave pulsatory alternating current (I0, I10), characterized in that the method further comprises the steps of: increasing the color changing frequency of the sequence of colors and of the sequential color representation, while retaining the frequency of the square-wave pulsatory alternating current (I0, I10), and in superimposing on each half cycle of said square-wave alternating current (I0, I10) at least one second current pulse (P2, P4, P20, P30, P50, P60) of the same polarity as the first current pulse (P1, P3, P10, P40) within said half cycle (I0, I10) for averaging out color shifts resulting from a movement of the first light pulse over individual color segments of the color wheel, caused by the increased color changing frequency. - a color wheel comprising a plurality of color segments adapted to generate a sequence of colors having a color changing frequency; - an image display device adapted to display said video by means of a sequential color representation having the color changing frequency; and, - a high-pressure gas discharge lamp, supplying the lamp with a square-wave pulsatory alternating current (I0, I10) having a cycle (T0, T10) and composed of a square-wave alternating current superimposed with a pulsatory current, the pulsatory current comprising first current pulses (P1, P3, P10, P40), each of which ending after a half cycle before a phase reversal of said square-wave pulsatory alternating current (I0, I10), characterized in that the method further comprises the steps of: increasing the color changing frequency of the sequence of colors and of the sequential color representation, while retaining the frequency of the square-wave pulsatory alternating current (I0, I10), and in superimposing on each half cycle of said square-wave alternating current (I0, I10) at least one second current pulse (P2, P4, P20, P30, P50, P60) of the same polarity as the first current pulse (P1, P3, P10, P40) within said half cycle (I0, I10) for averaging out color shifts resulting from a movement of the first light pulse over individual color segments of the color wheel, caused by the increased color changing frequency. increasing the color changing frequency of the sequence of colors and of the sequential color representation, while retaining the frequency of the square-wave pulsatory alternating current (I0, I10), and in superimposing on each half cycle of said square-wave alternating current (I0, I10) at least one second current pulse (P2, P4, P20, P30, P50, P60) of the same polarity as the first current pulse (P1, P3, P10, P40) within said half cycle (I0, I10) for averaging out color shifts resulting from a movement of the first light pulse over individual color segments of the color wheel, caused by the increased color changing frequency.