1. maybe you have trouble reading so I'll repeat myself again. It happens in ALL DX11 games (at least all I tested) in Win 8 and up. there is refresh rate change when alt tabing back to desktop (because that runs at 60Hz and your game ran at 59.94Hz), you can deny it all you want, but it happens on Win8+ and does not happen on Win7. 2. yes there is a microstutter, just because you can't see it doesn't mean there isn't. the further you get away from 60Hz the more stuttering you'll get. if you run 59Hz you'll get moderate amount of stuttering, if you run 58Hz even more stuttering. 59.94Hz is very very close to 60Hz so it's hard to notice that's why i called it micro-stuttering. 3. once again, just because it seems fine to you don't make it so. in win7 dx11 games we can choose 59 and 60hz, while in same games under win 8 and 10 we can only choose 59hz and 59hz listed twice. are you still arguing that this is normal behavior and not an issue when it clearly is?