John, I'm still working on Apache and mod_perl. I moved the Constants.pm for mod_perl 1.29 into the installed development version (1.99). That did get me past the problem. However, now Constants.pm can't locate method "boot". If I can't resolve this we may be forced to run two instances of Apache: 2.0 for xReporter and 1.3 for RT. I'll keep you posted. Bill