Salam,
Well, i have only used RDP as windows to linux (desktop), there should be no issue...
for linux to linux, well x11 forwrding through ssh seems to be issue with that.... not used
if i try i will let u know
There is also another way if u can try....
www.nomachine.com and go to download section.
U can find all details here, how to install, it also has client for ubunto. what u will
do is to install the server, install the client on ur ubunto, and then use it... it really very amazing i have used this....
Regards,
Umair Shakil
ETD