"Linux @ home -> Cygwin X server @ home" won't work

[seya]

Brian, Alex,

You're my savior! Now I finally got out of this hell. I really appreciate
your help from my bottom my hearts. There were so many variables which would
cause this problem. Without your help I would not be able to solve this
problem within a day.

I finally realized that a resident Firewall program is installed on my note
book PC by my company's IT person. It was this program that blocked X
protocol packets between PCs outside of the company network ( this is why it
was working when I was on my company's VPN network ).

I was paying too much attention to other things such as Firewall
configuration on my router. I disabled all Firewall options on my router and
thought I was done with it, which was awfully wrong. If it were not for you
I would not be able to think about Firewall again and would have killed few
more days...

I learned great tricks from you. I hope other people would get benefit out
of this thread as well.

Thank you very much :-)