Help: Postfix script returns NaN

[paulhurleyuk]

I've got a Cacti setup running ontop of MythBuntu 8.10. I've recently tried to setup the postfix script listed here http://forums.cacti.net/about6657-0-asc-0.html

Everything imported correctly, but my graph shows NaN for all values and doesn't display anything.

I don't know where to start debugging this, any ideas ?

Paul.

[gandalf]

Sure; please see 2nd link of my sig
Reinhard