I see what you mean with the scrolling text. I had kind of chalked it up to the x86 version of OS X, but I guess it's the display.
I had to look pretty close at that gradient to notice any banding. Man I thought I had good eyesight too (I'm definitely sensitive to dim spots behind a display) Maybe I should stop looking for the problem - ignorance is bliss, right?
: A simple gradient is a good example. If you can see any banding in that
: gradient you are seeing the result of your monitor's inability to display
: "Millions of colors." My CRT, and several other LCD's I've used
: show that gradient perfectly. I'm driven nuts every time I see the
: banding...