Bisect gives me the following
878c2a83325b66cea79c24dc7379e5a6ee976044 is first bad commit commit 878c2a83325b66cea79c24dc7379e5a6ee976044 Author: Vincent Pelletier plr.vincent@gmail.com Date: Mon Dec 22 21:56:14 2008 +0100
user32: Fix SPI_GETMOUSESPEED and SPI_SETMOUSESPEED.