Icewm lock workstation disabled

birdy

I was wondering if any one could help me with this problem I have been having with the Ice window Manager. I have Debian 8 stable, with Icewm and Gnome installed. The problem is that when hit ctrl+alt+del the lock workstation button is disabled, as shown here on my laptop. Is there any solution towards this problem?
Thanks in advance.

dosbox

Is the the xscreensaver program installed?

birdy

No, I guess I will need to install it.

Update:
I installed it, and the problem is now fixed.