Thanks for your reply. My machine has 2 serial ports, but I am not using it. All I have is KVM Switch. I got no problem at all with my other machines. I guess SuSe 10.X doesn't like dual processors. This is my third time install/reinstall but the problem is still the same.

The thing is I spent my whole day installing and configuring my Apache/MySql/PHP servers on this machine. Now, looks like it's not working anymore since I hit the power button to shut it down every time after use. OH, I still run the command telinit0 or shutdown -h now and waits until it's saying
"The system will be halted immediately ..Done
Master Resource Control: runleve 0 has been reached
stty: standard input: unable to perform all requested operations"

I guess that causes the problem now. I am really unhappy with it because intalling and configuring apache/mysql/php is not easy for me. It's very time consuming and headache. Please help. Thank you.