Re: since driver update problem with eve-online and color depth (16/24bit)
This has always been true. If you are running a game in windowed mode (on any OS), then you must use the same color mode and refresh rate as the desktop. However, unless I am mistaken, modern graphics cards have largely eliminated the performance difference between 16-bit color and higher modes. Using the lower mode doesn't increase performance very much, but introduces severe in-game banding and/or dithering.
I should also mention that if it was letting you select 16-bit color mode while running in a window before, that was probably just a WINE bug.