vidScreen not doing anything but white noise

i am having trouble getting the video screen operational. it only displays default static noise image.
it is located at:

I have tried the breakout example at:

i have seen an emulator tool talked about in another post and tested with it.

the breakout game works in the emulator tool, but not on my vidscreen. I also tested the game included on the emulator tool in my vidscreen and it did not work either.

the vidscreen just always has static noise image.

i just paste the script into the script area.
do i have to do something else to activate it?

any help?