I noticed some difference like this too in my DK2.. I'm not sure how to explain it, it's kind of like too much contrast or something and then the gradients around the milky way really stands out like a cut'n'pasted gray splotch onto a space background, same with nebulaes and star blooms (ofc blooms are dynamic, but they stand out all the same). Also the front thruster bloom from my Sidewinder is very visible. It's a bit eye-soring, but not extremely (Well some might call it very eye-soring..). As for reflections I'm not sure.
But sometimes it is A-OK and gorgeous, no visible "gray splotches" around nebuleas, the milky way or star blooms etc..
Btw, it seems they improved the blackness of space in Gamma version, as it's now basically the same color as the shadow side of planets etc (the shadow side of planets don't "stand out" as darker than space now... ofc it might be I restarted in another sector of space after the "gamma wipe", which have a different color tint to it, or lack thereof, or something.. but I think it looks better, regardless of the other issue above).
I haven't really played (started) it enough times to be sure, but my last 2 out of 3 times, it was like that. I'm not sure why it sometimes work, or don't work. Also screenshoots don't show it how I see it... (plus monitors vary also.. ED should have a gamma test slider with a figure that you are supposed to barely see when set correct).