Unwanted xscreensaver process spawned by startkde (KDE4)

[Davide Mancusi <arekfu@gmail.com>]

	Guys, this is really driving me nuts.

	Running KDE4 on sid. When I log in, there are always an
xscreensaver and a ssh-agent instance running, even though I log in
into an empty session:

davide@macco:~$ ps aux | grep xscr
davide    1580  0.0  0.0   7272   820 pts/1    R+   20:59   0:00 grep --colour=auto xscr
davide    3361  0.0  0.2  55196  2296 ?        S    20:04   0:00 /usr/bin/xscreensaver -nosplash
davide@macco:~$ ps aux | grep ssh-
davide    2689  0.0  0.0   7272   820 pts/1    R+   21:02   0:00 grep --colour=auto ssh-
davide    3377  0.0  0.0  36016   268 ?        Ss   20:04   0:00 /usr/bin/ssh-agent /usr/bin/dbus-launch --exit-with-session /usr/bin/startkde

	I'm happy about ssh-agent, I just want to get rid of
xscreensaver and use kscreensaver alone. If I just kill the process, it
pops up again next time I log in. $KDEHOME/{Autostart,env} are empty.
Grepping .kde and /etc/kde for "ssh" or "xscre" doesn't return
anything. Oh, and according to pstree, both processes are spawned by
startkde:

davide@macco:~$ pstree | grep -C4 xscreensaver
     |                      `-{ksmserver}
     |-kdm-+-Xorg
     |     `-kdm---startkde-+-kwrapper4
     |                      |-ssh-agent
     |                      `-xscreensaver
     |-kglobalaccel
     |-klogd
     |-kmix
     |-knotify4---4*[{knotify4}]

	Does anyone have any idea of how I can get rid of that *insert
expletive* xscreensaver at login?

Davide

-- 
Time flies like an arrow.  Fruit flies like a banana.
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If anything can go wrong it wSegmentation fault
core dumped