All right, I don't know how to say this, but I will try my best!
When i used Windows 7, I could touch my mousepad and "emulate" a left-click, but when I do this in Ubuntu, the mousepad temporarily locks, so the mouse wouldn't move.
So now, I am looking to be able to do the same thing in Ubuntu, but I can't seem to find it :( I think what did was the Synaptics driver, so maybe its impossible, just wanted to try the luck with the largest Linux community ^^
EDIT: Okay, maybe I didn't explain it well enough :P I am looking for a function which makes the mouse stay still when I tap on the mousepad, because the way it is now, I have the mouse over the desired button, but when I tap the mousepad, the mouse moves slightly, which can be a problem :P