asterisk users - Feb 2006 - asterisk 1.2.1: everything ok but strange messages appear on linux console

Hi,
I set up my asterisk 1.2.1 with debian distro on a box with  a TDM400P 
card and a monoBRI. I installed the install-mISDN sw from beronet site.
Everything seems fine....I can make and receive calls but everytime I 
make a call, strange messages appear on the console.
Here follows a piece of my log file:

*Jan 30 17:33:46 localhost kernel: unregister_instance: no layer found
Jan 30 17:44:52 localhost kernel: dev_manager prim f1780 not handled
Jan 30 17:44:52 localhost kernel: unregister_instance: no layer found
Jan 30 17:44:58 localhost kernel: dev_manager prim f1780 not handled
Jan 30 17:44:58 localhost kernel: unregister_instance: no layer found
Jan 30 17:45:37 localhost kernel: dev_manager prim f1780 not handled
Jan 30 17:45:37 localhost kernel: unregister_instance: no layer found
Jan 30 17:51:43 localhost kernel: dev_manager prim f1780 not handled
Jan 30 17:51:43 localhost kernel: unregister_instance: no layer found
* 
and a *lsmod | grep mISDN* says (I rmmodded hisax as written in beronet 
docs):
*
mISDN_dsp             192064  0
mISDN_l2               36608  0
mISDN_l1               10760  0
mISDN_core             67680  5 hfcpci,mISDN_dsp,l3udss1,mISDN_l2,mISDN_l1 *


I searched with google but found no satisfying answers.
Is there anybody experiencing my same problem??

TIA

Giorgio Incantalupo