QNX6.3 Radeon7000

Hi.
I have QNX 6.3 and 2 graphics Cards from ATI Radeon7000/PCI VID:0x1002
PID:0x5159
When i start crttrap trap, is found only 1 card (for all command pci shows
correctly 2 cards!).
When i use parameter index=1 for second card for io-graphics in
graphics-modes, i get message: initialization error: no such device or
address.
Thanks