unable to init dll devn-el589 : Operation not permitted

Hello,

I have an laptop with 3com pcmcia-ethernet adapter.
It works all succesfully with the full system installation (CD, QNX6.2.1)
and the devn-el589 driver.

But if I boot from a floppy that includes all necessary drivers and start it
with :
devp-pccard &
pin → get ioport / irq
io-net -d el589 ioport=0x300,irq=3 -p tcpip &
I get:
unable to init dll devn-el589 : Operation not permitted

If I use the same boot disk with a second network driver on another PC it
works, so I’m sure that no basic files fehlen
What’s the reason for this error message ?
Needs the devn-el589 driver any additional files or configurations?