Really? Oh no... I believe the problem lies in the hardware wacom board. Maybe is just my unit having these parallax, as others never mentioned about it. The only calibration software is from windows as you have seen, though it didn't help much... I ended up just reset it to default. Thanks for for letting me know the comparison with other brands as this is my first Wacom EMR tablet pc. Yea, I gonna ask these in Acer forum too, hopefully some ConceptD 7 Ezel owners can help enlighten me on this defect. I will post updates upon getting some confirmations.