I wanted to have my mouse left-handed when booting in the docking station (since I there have a mouse) and have it right-handed when booting "in the wild" (since there I only have the touchpad). Created two registry files (with the "SwapMouseButtons" set accordingly) which are imported during logon, but no effect.
Looks to me as though there is some other place to change as well... but I don't know where... any help appreciated.