Symantec Client Security crashing Windows 2000

Hello Micronet.

I ran into a problem installing Symantec Client Security onto two
Windows 2000 machines yesterday and hope the list can help me find a
solution. The program installs and live-updates without complaint.
Upon rebooting, both "Windows 2000 loading" screens (white text on black
background and the colorful one on a white background) show up. Before
I'm prompted to ctrl-alt-del and log-in, there's a Blue Screen of Death
that tells me "stop: C000021a fatal system error, the windows logon
system terminated unexpectedly" and something about a kernel_trap_error.
  At this point, the system reboots and the cycle repeats until I beat
the computer repeatedly with it's own keyboard.

I am able to get into safe mode, though I can't uninstall Symantec
Client Security (the system thinks Windows Installer isn't present). I
believe the main problem has to do with savrt.sys. If I change the path
of each registry entry pointing to savrt.sys (there are a few in
HKLM\SYSTEM\ControlSetXXX) and reboot, then the problem disappears but
Symantec Antivirus Auto-Protect fails to load. This is, obviously, not
a good situation even though the firewall component seems to work properly.

The Symantec KB just suggests fixing the paths I changed in the
registry, but that brings us back to the BSOD. Has anyone else run into
this problem or where to go from here? I'm hesitant to let my users run
around on the internet without their little yellow shields.

In case this message isn't long enough already: Both systems are Dell
Optiplex GX115 with the factory Windows install (build 2195). I've
tried with the current version of SCS on software.berkeley.edu and also
with the stand-alone SAV 9 installer.

Thanks!

-- 
-Brad Herman
Webmaster/Network Administrator
Political Science Department, UC Berkeley
www.polisci.berkeley.edu
510.642.6630
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