So I have Ubuntu 12.04 installed on my Asus S400CA and it works wonderfully for the most part, but occasionally the touchscreen will only allow me to move the position of the cursor and won't allow me to click. This problem seems to occur often when I am trying to use Inkscape to draw with my screen. I have not installed any special drivers and I do not know if there is any special step for touchscreen that I missed while setting up my computer. Thanks for the help!