Minor update for PingPlotter

Minor update for PingPlotter

We just released version 3.30.1 for PingPlotter Standard and Pro. It's a minor release, but fixes a couple of nagging bugs, adds a new graph metric, and solves some false positive virus warnings (which AVG has since fixed on their side too, but ... oh well)!

This is a free upgrade for all current licensees, and you can get it from our download page.