An anonymous reader writes:
People have been noticing the Apple Macbook Pros have grainy displays. Apparently the problem lies in that the Macbook Pro's display is only capable of displaying 262,144 colours at a time. Beyond that it dithers, thus the graininess. For any old Amigans out there, they'll remember that number from HAM8! This link explains the nature of the problem in greater detail. How sad that Apple's flagship notebook display is defective by design.