Ok, now I got my IT back from service and it seems that the problem still exists. They changed the whole display for the device, but looks like it didn't help.

When surfing and pressing stylus on a same spot for a little while the circle comes and the stylus is not in the middle of the circle. And when trying to press a little link (like on the forums) it doesn't work on top of it but somewhere near the correct spot.

Is there something I could do? Calibration doesn't seem to do anything.

EDIT: Should the stylus be right in the middle of the circle?

Here are two (poor quality) pictures of the problem and as you can see, stylus is on the top right corner of the circle: