It's nothing I use, personally, I just barely know what it is.
Anyway, I think cygwin-X can do it.
http://www.cygwin.com/xfree/
But this live CD seems more like a program that does exactly what you're looking for:
http://xlivecd.indiana.edu/
But the only solution that I personally know of, would be to install VNC:
http://www.realvnc.com/
(thank goes out to
this url (link) for letting me rip of their tips :[img]http://www.abandonia.com/forum/html/emoticons/laugh.gif' border='0' style='vertical-align:middle' alt='laugh.gif' />)