Touchpad goes crazy after about 15 minutes of use

Binary package hint: xserver-xorg-input-synaptics

First it works OK, but when the computer warms up a bit, it begins producing tappings when trying to move mouse. Mouse still moves, though. Don't know if it's connected with the bug, but you can't disable tapping with ksynaptics icon (and that's certainly connected with the annoyance!)