Computer doesn't shut down

Hi all!

First of all, I wanted to say thanks for help on the first problem I had. I couldn't find my original post, so I'm posting here. Now that my computer is up and running, I still have another problem with it. Every time I want to shut down, it just reboots itself. What could be the problem?

Any help is appreciated!

Sue

 

http://forums.techguy.org/showthread.php?threadid=59922

Here's the first post although it doesn't say what eventually got the computer to boot up.
What parts where replaced???

 

OOPS! Sorry. I first replaced the power switch, but it still didn't boot up, so I had to replace the power supply too and viola! It worked!