For those who have used Graal on Ubuntu 9.10 would notice that the graal remote control doesn't launch. I found out that the libgtksourceview1.0-0 package is missing in 9.10 and is causing the problem with the launch and simply installing the package will fix the problem. Either use the terminal command below or search for it in the package manager.
NPC Code:
sudo apt-get install libgtksourceview1.0-0