I have a Logitech M560 mouse but I'm not sure this issue is specific to just this Logitech mouse.
Every so often the scroll wheel will become super slow - meaning I will have to scroll a lot to make the page go down or up a tiny bit.
I know this is not a hardware issue because if I shut down the SetPoint software, the scroll immediately works great again but then I lose the functions I set up for all the buttons so I need the software to run.
I also noticed that when this happens, If I open the SetPoint Setting and hit the Apply button (without doing anything else) then the mouse wheel start working again. But having to do this 5-6 times a day is getting annoying.
I have the M560 both a work and at home and I have the same issue on both PCs.
Any ideas? Thanks