[SeanDav]

Just tried it again. Still can't live with it at night, makes me feel like I am going blind with the shift to red. Might try it 1 more time with a gradual shift and see if that works but right now, certainly not useable for me.

[Centigonal]

I couldn't stand F.lux the first time either. What I did was set it to where I could barely tell the difference. After a week or so I would find myself thinking "too bluish" staring at my screen at night, at which point I lowered the color temperature slightly.

Within two months, I had found a setting I felt comfortable at (right now it's at 3500K).