Um yeah, there is a reason for that. I also find it annoying but what can you do heh. The reason it no longer saves, is because in order for it to store your pasword in the client, it needs to store your password on your computer, via the registry. The registry is easily accessed by programs that you might run, which allows for "hackers" to make fake trainers or trainers or anything that will read your entire registry information for Graal, and send it to the "hacker" by methods of messenger, irc, e-mail, etc.
Basically, password saving was removed so that people can't access your computer and easily obtain your pass from the registry. It's annoying having to type it in each time, but there are easy ways to remember it. Here are some examples:
1) Save your pass in a text file on your desktop
2) Have a Graal shortcut in your startmenu, and rename "Graal" to your password
3) If you're clever, you could put your password in your desktop background image somewhere.