Proble with pointer calibration

I don't know if these is GPE dependant or not.

I have a lot of problems with the calibration of my pointer, I am usin
familiar 8.4, GPE 2.7 and hx4700. I can obtain a good calibration of my
pointer, and the calibrations always change when I start my ipag again,
sometimes it is really imposible to login, or to writte anythin, not to
say to close a window. I have to delete /etc/pointcal to recalibrate in
each reboot.

Has somebody some idea of what causes this?

What is the content of /etc/pointcal?

I have two by now:

-1821	-134	47806016	110	2359	-18658224	65536

and

-1867	-141	48341616	142	2424	-20288000	65536

can any one share your pointcal values, so I can figura how dows it work?