cant boot qnx 6.1.0

i’ve installed qnx 6.1.0 onto my windows partition and cannot boot it using
the boot disks (the dma and non dma) and both get stuck after it says press
space to select boot options (or something like that) and after a bit it
/dev/pci did not mount

after looking at other posts other people are having the same problem, but
in this case i AM using a system with a PCI bus and 2 items attched to it
(soundcard and mpeg decoder card)
my mobo is a gigabyte-71xe with the AMD 750 chipset.
installing qnx on its own partition and not using a boot disk solve this
problem? is there a way of doing this withough having to download the iso