I have install the Pen on Fujitsu LT C-500 of Win2K.

i have change the driver on the PS/2-mouse with the driver Stylistic 3400 Pen on
C:\FPC\INSTALL\PENDRV

do you not reboot

the first unkown Hardware is the Fujitsu Driver not the Pen
the second unkown Hardware is the Pen

select the unknown Hardware change the driver
Select the Driver tab
Click the Update Driver button
Click the next botton
Select Display a list of the known driver
Select All Hardware komponents
Select Fujitsu PC Corporation and tab to Fujitsu Stylistic 3400 Pen
Click next button and install the driver

do you not reboot !!!!!!

deinstall the change PS/2 Mouse

calibrate the pen white PENCFG.CPL in the Folder c:\FPC\INSTALL\PenDrv

after the calibrate you can reboot the Tablet.

it's better you save the Hardware profile bevor you change the mouse driver !!!

Good luck