Shuting down problem

[J.A.S]

Sometimes when I try to shut down, a message appears saying
"End Program: sgtray.exe" and it takes a long time to
complete except if I use the "Enter" button.

Sometimes after I shut down the computer and return a few
hours later I found that it never shut down at all. What
can I do to stop this annoyance?

Yes, I use Windows XP.

 

[Kelly]

Hi,

This edit controls whether Windows should automatically power down or reboot
your computer once it has finished the shutdown process.

Power Off or Reboot After Shutdown (Line 76)
http://www.kellys-korner-xp.com/xp_tweaks.htm

This edit automatically ends tasks and timeouts that prevent programs from
shutting down and clears the Paging File on Exit.

Auto End Tasks to Enable a Proper Shutdown (Line 76)
http://www.kellys-korner-xp.com/xp_tweaks.htm

Shutdown.Exe - Andrej Budja (Line 52)
http://www.kellys-korner-xp.com/xp_tweaks.htm