Lidsadm cannot read /proc/sys/lids/lock (2.4.26 / lids-1.2.1pre1-2.4.26)

Hi,

I've tried several times to make LIDS work on a Debian system with a vanilla 2.4.26 kernel, but failed to do so
every time. Some time ago I already tried 2.6.5 and got similar problems which were related to lids not
being compiled as a module, but with 2.4.26 that's no possible as far as I know. 

Kernel compilation an installation are fine, but when I reboot with the LIDS kernel in place and try to close
the kernel (lidsadm -I) I get an error. Each time I get an error like: 

SWITCH
LIDS: lidsadm (dev 8:1 inode xyz) pid x ppid y z uid/gid (0/0) on 9vc/1) : Attempt to read locks sysctl
(unathorised program)
read: operation not permitted
lidsadm: cannot read /proc/sys/lids/lock". 

This error also occures when I try to enter a LIDS free session although I think I enabled all the necessary
options in the kernel config. Kernel config below:

Any suggestions?

Mark

Config:

lids-1.2.1pre1-2.4.26.tar (tools 0.54)

Kernel 2.4.26 config:

# Cryptographic options
#