The Tungsten E2 seems to have pretty poor quality control. This is my second one, and it is very hard to set the digitizer accurately. At the moment, it records above where the stylus is placed, making it impossible for me to either use Fitaly Stamp at all, or to enable adjust position. Touching that point on the stamp merely brings up the numeric keypad.
The only solution would be for an upgrade of the Fitaly software which would supply a trigger to "adjust position" in Fitaly Setup.