where are the contrast settings for the powerbook?

[orijinal]

i am trying to calibrate my screen using supercal and in the first step it is telling me to put my contrast all the way down but i don't see where the contrast is.

 

[.Andy]

i am trying to calibrate my screen using supercal and in the first step it is telling me to put my contrast all the way down but i don't see where the contrast is.

Can you even adjust contrast on an LCD or is it brightness only? o)

 

[orijinal]

just checking

thanks