Laptop touch pad automatically generates mouse clicks

I have a sony PCG-V505BX laptop. Since installing dapper, the touch pad seems to be very sensitive, as in when going starting to move the cursor, clicks are generated along the way.

Also, clicks seems to be generated randomly while not being used. This is a big problem, since if I'm typing anything, the click will throw the cursor to the location of the mouse pointer (as a normal click would). Or would select all the text and cause it to be overwritten (as a double click would).