Touchscreen working but can't calibrate

[scarja]

Hi all,
I've installed puppy on a VIA C7 chip PC and a lilliput touchscreen. All is working well (it's automatically got my touchscreen functions going) but i can't calibrate it.. I've installed the touchscreen calibrator (xinput-calibrate) but it says there is no calibratable device. Maybe i should install some drivers and edit my xorg.conf first somehow? But how do I know wich drivers and what to put in xorg.conf?
Thank you ,
James