UNIX PC questions...

[Dean Swan]

I just got a Unix PC (used from a local university) and really need
to clean up the disk.  It has a bunch of accounts on it that are 
meaningless (and useless) me.  It came with no docs (only the quick
reference card), and I'm having a !@#$ of a time with it.  I like the
machine a lot, but I need help.
  Also, is there any way to turn off the window manager?

One last thing.  No body remembers the SU password, because the machine
was in a closet for three years, collecting dust.  Is there anyway I
can find out what the password is, or regenerate the system, or something?

Thanx in advance....

Dean Swan
dean at sun.soe.clarkson.edu

P.S. Direct E-mail replys are better for me, but I'll check this group too.
Thanks again.  :-)