Hi I typed "cat /dev/random" on tty1, and some strange characters scrolled , so I pressed Ctrl-c to terminate cat. But after that, characters can't be shown correctly on tty1, they are shown as strange characters. Other ttys are normal. I tried "cat /dev/random" on Konsole, and it doesn't have this problem. Does that mean there are exploits in ttys' driver code? -- Regards Liu Tao