I used a Mac and a PC at work side by side (Often working on the mac when the PC was waking, booting or installing some security upgrades which was a big part of the week, Vista wasn't really any good). But in mousing the difference was clear, Windows had the advantage. I tried switching the mice back and forth but no help.

I also had Ubuntu at home and at my parents' place, and it had the same simple responsive mouse as Vista.

Now I've gone full Mac but it still constantly annoys me at work. If it weren't for the other good things in the OS...