Computer info :
i have 6 GB ram and my video card is a 256MB nVidia GeForce 9100
Have your friend try this debug client... it may yield a little morei nformation. Just out of curiousity has he downloaded all the client patches (not content patches) but client patches.
http://www.fantasyrealmonline.com/download/froclient.exe
He will need to replace his existing client with this one. found in c:\program files (x86)\fantasy realm online