I have tried to find a way to set the mouse buttons for a left-handed user, but the SliTaz documentation does a good job of hiding how to do it. I'm playing with various distros in order to decide on one to install onto the 4.3GB hard drive of a 10+ year old notebook which currently has DSL frugal-installed on it. Perhaps LXDE doesn't allow a left-handed mouse. If used IDE HDs were cheaper where I live, I'd put a bigger HD in the notebook and install Windows 2000 on it because I find hardware to be hell in Linux. :(