David Wright writes: > In the first instance, fuser /dev/ttyS1 will tell you the PID of any > process using it. Secondly, check it's crw-rw---- 1 root dialout 4, 65 > Mar 3 17:20 /dev/ttyS1 and that you're in dialout (type groups). Check /var/lock for stale lock files. -- John Hasler john@dhh.gt.org (John Hasler) Dancing Horse Hill Elmwood, WI