subb3 at attglobal.net said: > How do I find out what version of library is on my system? On RH (and other rpm distros), you can do this: ~ 1009: rpm -q -f /lib/libc.so.6 glibc-2.1.1-6 You have to peel off the "1-6" to see that this is glibc 2.1. Something similar should work or whatever libraries you're interested in. Jeff