need help displaying a blank screen after a video had stop playing.

hello, im new to max 6 and need wee bit of a hand.

what i am trying to do is make a video play when a infrared sensor detects movement and then it dose not, i want it to show a blank screen then the sensor dose not detects movement.
the part i am having trouble whit is getting the screen to go black then no motion is detected.
what i have been trying to do to make the screen go black is by using a revered trigger from the bang out put (from the sensor 1-0 off-on think its called bang) and an image but not have much success.
below is what iv got so far. (hopeful i have copied it correcting)

thanks.