X problems as root after su

[Sherrett O. Walker]

Hello,

I use ssh from cygwin on my laptop to login to one of many ES3 boxes and 
sometimes use su - (maybe this is the big problem).  When I try to use 
an application that uses X (is that the right phrase?  I'm not so 
familiar with X), I get this error message: 

X11 connection rejected because of wrong authentication. Connection lost 
to X server `localhost:11.0'

Anyone have any ideas how I can evade this setting?


SOW