Ok, I restored everything as before as far as the partition permission and /etc/fstab and rebooted to be sure, then used "chmod a+rw /var/lock". That worked. The output of "ls -dl lock" is now drwxrw-rw- 2 root root" etc. I relogged in. Ran dosemu as me wit the debugging option. Still no com ports; still because you must be suid root. Having read some other posts on this through google, I really think the problem is in the dosemu coding and not in my lock permissions now, because they are now ok.