We are running the Novell Client 4.91 SP3 on Win2K SP4. We also have a
service running on the PCs that reboots at 3AM. Since we put SP3 on, we
see the following. If the PC is setting at the Novell Client login screen
when the 3am reboot is attempted, it apparently hangs during the shutdown
portion of the reboot. In the morning, the users are reporting one/both of
the following:
-A blank blue screen with the mouse cursor that can be moved but nothing
else. . .
-A blank blue screen with the mouse cursor that can be moved and if they
wait long enough, the Novell Client login screen appears. When they
attempt to login they get. . . . Unexpected login error. Status 3221226238

They must power down the PC, when they do all is well.

I have some additional MS info on this error code:
"3221226238" is the decimal representation of the Microsoft API status
"STATUS_SHUTDOWN_IN_PROGRESS (0xC00002FE)". This status is returned
from a variety of APIs when the fact that a system shutdown has been
initiated prevents a particular action from being performed.