Hi, As kernel 1.3.95 (and above) does locking correctly you will get spurious error messages like fcntl_setlk() called by process 151 with broken flock() emulation if you use the broken flock() supplied in your libc. Now since a.out libc is no longer officially supported, here is an unofficial libc that I compiled which fixes the "problem". Basically it works for me. Tell me if you find something broken and I will (try to) fix it. Other than that, this new library has the some of the newer fixes from the libc5 branch (like new syslog.c, termcap 2.0.8, execvp.c, etc...). I will be maintaining a.out libc unofficially if you need any help. Only the libc.so.4.7.6 is provided. All other related libs should be intalled from the libc-4.7.5.bin.tar.gz available from sunsite.unc.edu:/pub/Linux/GCC. To install, gunzip the file libc.so.4.7.6.gz, move it to /lib and rerun the "ldconfig" command. Mitch Mitch.DSouza@NetComm.IE