WINDOWS 2000 PRO SHUTDOWN PROBLEM

When “SHUTDOWN” is selected, OS shows that ‘WINDOWS IS SHUTTING DOWN” and ‘CLOSING NETWORK CONNECTIONS”. When those windows disappear
we are left with blank background (desktop color),
no icons, and it just ‘hangs’ at that point. FYI–Power Mgmnt checked in CTRL Panel and is OK, and APM enabled in CMOS Any ideas would be appreciated. Thank you.