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F.lux makes my mouse stutter, makes my computer slow, and doesn't seem to change my colors at all.
Most problems like this can be fixed by updating your video drivers.
Use Safe Mode if you think f.lux slows down your computer.
In my opinion there's nothing to suggest that f.lux is actually a trojan but the earlier version was AFAIK only available as a beta and was well-known for causing issues like slow downs and freezing...
[SOLVED] need older install version of f.lux
originally posted by: nonspecific
If it's an older model and it soulds like it is it might because of virtual memory.
I would suggest backing up everything to external sources and removing any programs you no longer use or need.
A good defrag will not hurt either.