touchscreen triggers SLIM login display, howto remove that?

[att2]

Hello,
Every time I touch the touchscreen on the Olimex A20, it does not move the mouse.
Instead of moving the mouse, the login screen is triggered. /usr/bin/slim -d is started, and
/usr/bin/X11/X -nolisten tcp -auth /var/run/slim.auth vt07 is started.
I don't want this.
I want to move the frigging mouse with the touchscreen!!!!
PLEASE HELP !!!
I cannot find the darned config file that is responsible for triggering the "slim" !!!
I am searching for hours now!
X-system is LXDE.

[att2]

Edit: Sorry, also the message appears:
root@eSignTouch7:~# <4>[DISP] layer allocated at close: 0,101
[ 4001.460543] [DISP] layer allocated at close: 0,101
UMP<2>: [ 4001.466450] UMP<2>: Session closed
Session closed
<4>[DISP] layer allocated: 0,101
[ 4002.639526] [DISP] layer allocated: 0,101
UMP<2>: [ 4002.664684] UMP<2>: New session opened
New session opened

How to stop that???