Follow Up to start command- PATH

[Michael Stearne]

I successfully got the su command to run, but vncserver calls a program
Xvnc , which is at /usr/local/bin, which startup says "Xvnc is not in my
PATH".  This leads to question WHERE is the most basic PATH set?  There
seem to be so many, rc.sysinit, profile, csh.login, I have reset all of
them and I still I get the error.  Where is the root PATH?

Thanks,
Michael