iceape shut down xwindow

[Gerard Robin]

Hello, 
when I close iceape, xwindow shut down.
Has anyone encountered the same problem ?

I use unstable.
apt-cache policy iceape

iceape:
 Installed: 1.1.1-2
 Candidat: 1.1.1-2
Table of version:
*** 1.1.1-2 0
       500 http://ftp.debian.org unstable/main Packages
       100 /var/lib/dpkg/status

uname -r
2.6.18-4-amd64

--
Gérard