Compaq ProLiant 1600R shutdown hangs

[CA1238469]

I am running Windows 2000 server SP4. During the shutdown process when the system should display "It is now safe to turn off your computer" or just power off (or restart) the system hangs. I get a blinking cursor in the upper left with a black screen. My only option is to hit the power button.
Is there a setting somewhere that might have been changed that anyone would know about. I have another 1600R at the same Windows level with no problems.

Thanks,
Bill