SSE = Silk Screen Effect or Rainbow Effect.
Some people are more sensitive to the effect than others.
The rainbow effect occurs when your eyes move quickly across a single chip DLP display. Note that this will occur with both front and rear projection systems. What you will see is bright objects separating into the colors of the light projection system, usually red, blue and green.
It can be lowered by decreasing the brightness and contrast, or by calibrating your screen....