Hangs up during shutdown

Win98, 1st Edition: Too often, when I go Start/Shutdown/Shutdown, my computer hangs up. Ctrl+Alt+Delete has no effect. I have to hit the power button on the tower to get the thing to turn off. Any ideas?

 

See this
http://www.microsoft.com/windows98/downloads/contents/WURecommended/S_WUFeatured/Win98SE/Default.asp

 

Are you saying that the information you referred me to applies to Win98 1st Edition, which I have, as well as to 2nd Edition?

 

You may want to take a look at this as well: http://aumha.org/win4/a/shutdown.htm

and perhaps this: http://www.dimaware.com/shutdown/main.htm

 

jujet84: I downloaded the Win98SE Shutdown Supplement, but when it came to installing, I got a message that it was not for my OS.
robo: I did an update check and found that I have installed the only Service Pack (SP1) that is listed. How can I tell if my OS is "essentially 2nd Edition"? Are there things that SE has that 1st Edition doesn't have that I can look for?
Maxwell: That site listing the 15 troubleshooting steps looks good. Part of my problem is that shutdown doesn't always hang up--maybe half to a fourth of the time--so it's difficult to tell if one of the troubleshooting steps has worked.
Once again, thanks to all who posted!