The information you've supplied is *very* sparse.  You said:

   > > Great, so on top of the problems with my SLIP caused by the X window
   > > system, now I'm getting these errors:
   > >
   > > Mar  3 15:29:51 hillnet inetd[70]: pmap_set: 100008 1 17 1027: Address already in use
   > >
   > > And the SLIP will die.  No apparent reason, no load, etc.

1) What `problems with my SLIP caused by the X window system' are you
referring to?

2) In the syslog message, is the number `100008' always the same?  Do
you get multiple messages with different numbers?

3) Does this happen shortly after boot, after the machine has been up
for a while, ...?