Comm port conflict?

[Peter Howell]

        With a littel tinkering, I was bale to get a legacy win31 program to
work on my Caldera Openlinux 2.3 system.  I was even able to get it to
communicate with  ttyS1.  Well, now it has suddennly stopped working. The
program tells me that it is unable to access com 2, and wine gives the error
message:

err:comm:OpenComm16: error=16

I haven't been able to find mention of this in the documentation.  Does anyone
know what this means and how to fix it?

Thanks

Peter