Precisely that. Blacks on my screen have a purple hue inside of them and lightsabers have purple glowing around them, especially on black/red lightsabers etc.
nope, always been that way, since day one, not windows 8, i have had to reinstall it 3 times anyway (something was faulty for the Internet port, got it working now.)
i went thru some different videos games etc, purple hue appears around any "glowing" object being rendered, or shown.
Along with the deepest blacks havign a purple hue.