[jcoby]

f.lux caused my mouse to randomly jump on OS X. It didn't seem to matter how fast I'd move it, every 10s or so it would jump 1" in the direction I was moving. Really, really annoying.

[calinet6]

Yep, that's what I saw as well. I attributed it to display lag or something. It was unacceptable and I had to remove it.