xntpd v3.5f on qnx4.25

I am using xntpd 3.5f binaries on qnx4.25, and when I use xntpd -g,
the system clock is never stepped to within 128ms range for xntpd to
synchronize. Is there a function i need to modify to get that first
-g step to the range acceptable to xntpd?