Unable to create Graphs

[Magharl]

Hello.

I re-configured rrdtool under cygwin. All working now thanks. Got a prob with monitoring virtual hosts on a linux box:

I am running cacti and monitoring a L2 Switch, no probs, and the graphs are being created. I would like to monitor a linux box running Fedora C3. I have setup and installed SNMPD, and have used the basic config on the cacti site. There are no errors when adding the device. I would like to monitor the virtual hostsi have running on my linux box. Could someone please tell me how to configure SNMP to allow this?
I created a new data querie for the SNMP - Interface Statictics, and my virtual host IP's show up in the verbose query. But when i add a new graph the virtual host do not show.

Thanks.