Hmmm I'd have never thought of that. Though it still shows the numbers the graphs stop working. I have another widget that tells about network activity. In the configuration file it appears there is supposed to be a little bar indicator that never shows. Maybe you're right. Of course I'm just scratching the surface on configuring things like this. I really don't know squat.
Update: Ok I was wrong about the bars not showing. It just needs to be transferring a lot to actually register. Doing an internet speed test maxes them out.