As the title says, I cannot do 3 finger drags properly. This is quite frustrating when rearranging Apps in Launchpad, widgets, resizing objects in Interface Builder and tuning amps in GarageBand. This is particularly annoying in Interface Builder where the system gets confused on whether I am selecting, moving or resizing. Single finger drags seem to work perfectly but 3 fingers just don't. I have temporarily enabled 1-finger-double-tap-dragging but I prefer using 3 fingers.