qnx-rtp new install not working

ok i just dloaded the 25mb exe from qnx. installation seemed fine and was
nice and quick.

trouble is qnx won’t load. it’s on a windoze partition on a udma66 drive
(windoze is on udma33 drive). qnx starts to load, it checks for hardware but
then gives an error saying it can’t find the root file (the work file
root.qfs does exist), then it says it’s trying to find the safe mode
packages and also fails on this then sits there. on rebooting windoze
insists on running scandisk.

wassup???

i don’t know anything about qnx, do i need to dload anything else?