Heh, nope, your monitor is fine. That said, even your monitor is not exact/perfect right out of the box, there's always a chance the gamma/color is a little off. That's normal behavior. There's also different settings, for game, normal, cold, warm, movies etc that'll change things, maybe even auto color corrections or facial enhancements that might need enabling or disabling. Once you start getting into the nicer equipment, there's a lot more that's user definable and a lot less that's simply plug and play with no adjustments possible.
So if you want to keep using MSAA, see what tweaks and options are available to maybe remove or lower the shine. Might be as simple as changing from game mode to normal or movie etc.