Why I can't 'ssh -fCXY /usr/bin/gnome-terminal' ? Grrrrr....

[kitepilot at kitepilot.com]

Hello all:
This is so freaking odd that I'll explain it with a series of commands: 

There are 2 computers involved, linuxbox (Mint Tara) and wincrap (Win 7). 

In linuxbox I type: 

etroconis at ETROCONIS02-DT:~$
ssh -fCXY localhost xclock 

And I get my banana (xclock starts) 

Then 

etroconis at ETROCONIS02-DT:~$
ssh -fCXY localhost gnome-terminal 

and (AMAZINGLY!!!!) I get another terminal window.
So far so good.
Linux is B-O-R-I-N-G... 

Now we move to a cygwin shell in wincrap and I type: 

etroconis at ETROCONIS-DT:~ $
DISPLAY=:0.0 ssh -fCXY etroconis at ETROCONIS02-DT xclock 

And (voila), predictably and reliably I again get my banana-clock,
so FINAL ACT: 

etroconis at ETROCONIS-DT:~ $
DISPLAY=:0.0 ssh -fCXY etroconis at ETROCONIS02-DT /usr/bin/gnome-terminal 

But nope...    8(
My terminal never starts in the WinCrap box! 

So, In summary:
Please look at the 2 lines together (can you tell the difference?)
DISPLAY=:0.0 ssh -fCXY etroconis at ETROCONIS02-DT xclock
DISPLAY=:0.0 ssh -fCXY etroconis at ETROCONIS02-DT /usr/bin/gnome-terminal 

I know that things work locally.
I know that clock works remotely.
I know that gnome-terminal DOES NOT works remotely.
Does anybody have any idea why?   :(
Thanks for reading my rant...
ET