> Hi Stefan,
> 
> under /Programs/Logger/Start command I have
> /home/next/MIDAS/midas/linux/bin/mlogger -D . This command does not work if I
> press the "Start Logger" button on the mhttpd webpage but when I copy and paste
> this command to a terminal window, it does the job. 
> 
> Well, thanks to you both for the fast response. I wrote Konstantin an email with
> the results of the tests he suggested me to do.
> 
> Ciao

Let me guess: mhttpd is started under root (to be able to connect to port 80), and for root the mlogger program 
is not in the path. Try to put into the odb the full path:

/Programs/Logger Start command = /usr/local/bin/mlogger -D