mgetty problem

Hi Admins,

FC4 on HP Proliant

I had a problem today where users couldn't login to the telnet 
application they use. In the end a reboot solved it. I noticed that 
there were a lot of errors in the messages file:

Jul 29 04:00:07 mgetty[7424]: init chat failed, exiting...: 
Interrupted system call
Jul 29 04:00:07 mgetty[7424]: failed in mg_init_data, dev=ttyS0, 
pid=7424
Jul 29 04:00:52 mgetty[7472]: init chat failed, exiting...: 
Interrupted system call
Jul 29 04:00:52 mgetty[7472]: failed in mg_init_data, dev=ttyS0, 
pid=7472
Jul 29 04:01:38  mgetty[7533]: init chat failed, exiting...: 
Interrupted system call
Jul 29 04:01:38 mgetty[7533]: failed in mg_init_data, dev=ttyS0, 
pid=7533

and in mgetty.log.ttyS0:

07/31 11:14:29 yS0  timeout in chat script, waiting for `OK'
07/31 11:14:29 yS0  init chat timed out, trying force-init-chat
07/31 11:14:53 yS0  timeout in chat script, waiting for `OK'
07/31 11:14:53 yS0  init chat failed, exiting...: Interrupted system 
call

In the past ttyS0 was used (with a modem) as a dial-in terminal but 
it hasn't been used in over a year. From my searches I suspect I need 
to disable this now.

Will commenting out the lines in/etc/mgetty+sendfax/mgetty.config do 
it. Or am I barking up the wrong tree?

port ttyS0
debug 4
data-only y

Any thought appreciated? Thanx,
Dp.