LinuxMint 14 32-bit up to date
Kernel Linux 3.5.0-17
LXDE 0.5.0-4ubuntu3 (I guess; whatever's the latest version on 13 Jan 13)
Dell Inspiron 6400 laptop
Synaptics touchpad ver. 6.2 firmware
I think this is a shortcoming of LXDE.
I'm a leftie Linux noob. When I set the mouse to be left-handed on my LXDE laptop, I lose tap-to-click because tapping my touchpad works like a right-click for right-handed people or a left-click for left-handed people. For a left-handed person, tapping the touch pad should act like a right-click, which would be a left-click for right-handed people.
Micro$oft figured this out long, long ago (previous millenium?) and other desktop environments in several other GNU/Linux distros get it right. Linuxmint with Cinnamon, which is what I usually use, gets it right, for example.
Left-handed people are not disabled. Why should we be discriminated against? Why should only right-handed people be allowed to use tap-to-click with LXDE?
I posted about this in the LXDE forum a month ago and the only reply I got was from a right-handed guy who tried setting his mouse to be left-handed and basically said "yeah, you're right."