Can't smoothly type in gnome-terminal

[Chris <bbshliu@gmail.com>]

Hi, I'm a user of gnome-terminal. Currently the version is 3.0.1-1.

Now if I try to type any characters, I just get part of them typed
in. For example, if I type "ls", only "s" typed in. If I continuously
type "asdf", only "as" typed in. The result seemd to be random.

And the GUI changed. I'm not sure what style it is. Maybe it's some
old window style.

The problem is only in gnome-terminal. Now I'm using xterm, and it
works fine.

Many thanks.