Jonathan Kline wrote:
>  or tunnel everything through ssh then you need not 
> worry about DISPLAYs and xhost and such.

I am tunneling, well forwarding (is that the same thing), X through 
SSH. At least I think so - Putty has the "Enable X11 forwarding" 
option selected for X Display Location :10 using the 
"MIT-Magic-Cookie-1" remote X11 authentication protocol.
The server running X and SSH has "X11Forwarding yes" set.

Should that work for what I'm trying to do?