Here is the "Silver Bullet" for this one.
You need to pass the line:
to the kernel on bootup.
There is a file which I believe is
containing a line that looks like
kernel /boot/vmlinuz ro root=/dev/mapper/
Just add the psmouse line to the end of the kernel /boot line and reboot the computer.
No tap from the mouse pad was driving me nuts. After the above addition to my kernel line it worked fine.