Vncserver 4.0 losing keyboard input after CTRL-ALT-DEL and "Cance l"

[Conway, Brian J]

I think the subject summed it up, I am able to reproduce this on both
Windows XP (inside VMware 4.5.2 on a Linux host) and on NT4 Server (a
standalone system), with vncserver 4.0 on both, when connecting with
vncviewer 4.0.  If I do CTRL-ALT-DEL from the viewer through to the server
and click "Cancel", it refreshes really slowly, and I lose keyboard input.
Also, double-clicking on any desktop item brings up the properties for that
item.  This loss of keyboard exists on the affected server both through the
viewer or if I disconnect and use the server keyboard itself.

The way to free the affected system of this effect is hitting CTRL-ALT-DEL
on the server keyboard (not through the viewer) and click "Cancel", or hit
CTRL-ALT-DEL on the server PC (through the viewer), lock it, and unlock it.

Brian J. Conway
Information Systems Engineer
Allegro MicroSystems, Inc.
bconway(at)allegromicro.com