My rrdtool- Version is: rrdtool-1.2.12-13.2 The rrdtool is placed in: /usr/bin/rrdtool That's a WAY old version of rrdtool (2005)..I'd recompile a newer version per: http://oss.oetiker.ch/rrdtool/doc/rrdbuild.en.html It's a hassle, but well worth it. James