|Originally posted by beebster83
Well, I may very well be wrong, but as far as I understood it, no matter what LCD screen you have, it can only display 24 bit color (which is why setting it to 32 bits actually wastes 8 bits of bandwidth on your graphics chip
You are wrong
24 and 32 bit color are essentially the same, both display 16,777,216 colors, except that 32 bit has an 8 bit hardware alpha channel for transparency effects. You get 8 bits for each red, green, and blue channel, and one for alpha. You see this used all the time in games, which is why when running your games in 16 bit the transparency effects are dithered and look bad, because they're not using the alpha channel.
Windows 2000 and XP both support the 8 bit alpha channel in 2D for the GUI, which is how you get nice cursor shadows and fading menus.